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Andre Nguyen (Class of 2022) - Blue Science Portfolio

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Published by Andre Nguyen (Class of 2022), 2018-06-06 14:21:13

Andre Nguyen (Class of 2022) - Blue Science Portfolio

Andre Nguyen (Class of 2022) - Blue Science Portfolio

Blue Science Portfolio

Directions: Y​ ou have been asked to create a digital science portfolio that
represent your growth towards specific skills throughout the year. The
portfolio will showcase your lab reports, assessments and presentations
that you will complete in science class. You will be expected to edit and
revise the additions to the portfolio throughout year. The final project will
be submitted to ​http://anyflip.com/​ in June.

topics pages

Scientific Discoveries Presentation 1

Scientific Method scavenger hunt 2

Scientific Method quiz 3

Lab report 4

"Scientific Method Test 2017" 5

Phase Change of Water 6

Phase change quiz 7

Candy mix lab 8

Melt, rocks,sand, etc lab 9

Rocks lab 10

Classifying matters quiz 11

 

Scientific Discoveries Presentation

Scientific Method scavenger hunt-
Please visit the following websites, read carefully and respond to the
questions.

Website 1: h​ ttp://www.biology4kids.com/files/studies_scimethod.html
Questions:
1. What is the scientific method? ​To study the world around them.
2. What sample questions are given that science can answer? ​Why do
dogs and cats have hair?
3. How does science allow the world to “advance, evolve and grow?​ All of
today’s advancement are based on the achievement of scientists did great
work
4. What is the difference between inductive and deductive reasoning?
When you apply a theory to new area, that’s inductive. If you come up with
a theory it’s deductive.

Website 2:
http://phet.colorado.edu/sims/html/balancing-act/latest/balancing-act_
en.html
Questions:
1. Make some changes to the Lever.
2. What are the variables that you can change? W​ eight on each side.
3. Conduct a simple experiment and discuss your basic results.
4. What were your observations? T​ he more that there’s weight on one side,
the scale will move down. If there’s equal amount of mass on each side,
the scale will balance.

Website 3https:​ //www.youtube.com/watch?v=OgS 46 ksAawk
Questions:
1. Describe her basic experiment. S​ he puts 3 apples in 3 container. One
has a candle, one has vinegar and baking soda, and one has nothing. She
wanted to see which one would get more brown after 7 hours.
2. What are the variables? T​ he variables are vinegar and baking soda and
the candle.
3. Does she have Constants and a Control?​ Explain her control was the
just the apple in a container by itself. Her constant was
2. What were her results? H​ er result was that the apple that was with the
vinegar and baking soda got more brown to the apple.

Scientific Method quiz-

Directions: R​ ead the following description of an experiment and complete
the components of the scientific method.

Experiment:

Option #1: P​ atrick believed that fish would become smarter and complete
a maze faster if they ate food that was placed in a microwave first. He had
100 fish that he could use for the experiment. He evaluated their
intelligence based on their time to complete the maze.

Option #2:​ Mr. Smithers believed that Caffeine may make people more
alert. Mr. Smithers tested 100 people by using their scores in the same
video game. Devin had 3 different brands of drinks with 10 g, 20 g, and 30
g of caffeine respectively. He measured their scores on a video game that
had a range of 0-1000 points. Some of the players were not given caffeine
drinks. on the game

*Help Mr. Smithers design an effective experiment and write a conclusion
that analyzes your results.

Problem Statement
How can caffeine help people be more alert.

Hypothesis
If the people drink 30g of caffeine then they would be more alert.

Independent Vari
able

Amount of Type of caffeine Type of video
caffeine game

Dependent Variable
Video game score

Constants​ (Pick 2)

Size of the cup Amount of people doing the test

Control
Am​ount of caffeine given

Basic Procedures:​

(List 5-8 steps)

-Get all your caffeine and your 100 people
-Put all your caffeine in the cups.
-Put the amount of caffeine in the cup on the bottom of the cup
-Have all of them drink it
-Then wait for 20 minutes and let them play the game
-Record the score they got on the game.
-See your data

Data Table:​ (Place data table here)

amount of score
caffeine 100-300
10g 750-1000
20g 300-750
30g 1-100
no caffeine

Graph:​ (Place graph here)
Conclusion:
Purpose, Hypothesis, Description, Data or evidence, Improvements,
Conclusion

The purpose of this experiment was to see does caffeine make people
more alert. Our hypothesis was if the people 20g caffeine then they’ll more
alert. We gave the 100 people either 10g,20g,30g of caffeine. Some people
had no caffeine. After they drink it they wait 20 minutes and then play a
video game. The score of the was from 0-1000. Most people did better with
20g of caffeine not 30g. I think 30g is too much so people can’t think right. I

think i need to make sure I put the right amount of caffeine in every cup
next time. In conclusion, drink the right amount of caffeine to be more alert.
If you drink too much you won’t think right.

Lab report-

Name: Andre Nguyen
Class: S2
Teacher: Lopez
Date10/5

Investigation Title:

I. Investigation Design
A. Problem Statement:
If density is found can type of metal be found?

B. Hypothesis:
If density is known then the metal can be known

C. Independent Variable: x
Levels of IV

copper bronze tin aluminum brass zinc

D. Dependent Variable:y
density

E. Constants: Same triple beam Same graduated
Amount of water balance cylinder

F. Control:
Density water

G. Materials: (List with numbers)
1. Dopper
2. Water
3. Graduated cylinder
4.triple beam balance
5.type of metal
6. peker

H. Procedures: (List with numbers and details)
1. Get a peker, triple beam balance, graduated cylinder
2. Get your type of metal.
3. Fill your cylinder to 60 ML
4. Put the type of metal in the cylinder
5. See what is the volume after
6. Write it down and then i'll find your density
7. Then find your mass using the triple beam balance
8. Now divide your mass with your density.
9. Collect the data
10. Do it over again with another type of metal

II. Data Collection
A. Qualitative Observations:

Most of our data are the same but the numbers are either a little bit higher
or slower. When we did the metals again, we made sure to do it perfectly
so we can know which metal is which.

B. Quantitative Observations: (Key data)
1. Data Table

Object Mass Volume Volume Density
A (g) Before Volume Object (g/cm3)
B (mL) After (mL) (cm3)
C
D 63 60 69 9 7
E
F 266.8 x x 27 9.8
G
H 74 60 68 8 9.25
Unknown
Objects 24 60 63 3 8

23 60 63 3 7.66

25 60 64 4 6.25

22 60 67 7 3.4

31 60 71 11 2.81

Mass Volume Volume Volume Density

(g) Before After Object (g/cm3)

2. Graph
https://docs.google.com/spreadsheets/d/1anUhsWlzJQpUPSnpUKWBOyC
n4K4u2gi1XlvKO7XU7WU/edit#gid=0

3. Calculations

Show 3 Math Examples

Copper

D = m/v

D= 27 g
3 cm3

1) D= g/cm3
D= 63g/9cm3
D=7 g/cm3

2) D= g/cm3
D= 74g/8cm3
D= 9.55 g/cm3

3) D= g/cm3
D= 31g/11cm3

D= 2.81 g/cm3

D = 9 g/cm​3
III. Data Analysis/Conclusion

The purpose of this experiment is to find of which metal is which using their
numbers from their density. We measured the density of the metals in 2
days. One was with the letter and the next day the metal was labeled by
numbers. We had to find out which metal was which by their density. Our
hypothesis wa if density is known then the metal can be known. That is
very true because the density did help us find the metal. Our independent
variable was the type of metal like tin, zinc, brass, bronze, copper, and
aluminum. Our dependent variable was density. Our controls was density
water. We had a couple constants like amount of water, triple beam
balance, and cylinder. To find the density we divided the mass by the
volume object. To show that it works A and 7 was the same metal. We
found that out because of their density. To close this experiment up,
density will help you find the matching metals.

IV. Research and Applications
5 6-8 sentences about your topic
*How does Density relate to Plate Tectonics?

The earth's thin outer shell is broken into big pieces called tectonic plates.
The plates are like puzzle. Density has to do with the temperature. If it's
warm then it will be less dense. Tectonic plates has to do with temperature
too! For example, when it's cold it's more dense. Lithosphere is cold so it's
more dense. Density also cause convection in the mantle.

V. References and Citations
● 2 or 3 web links

https://www.khanacademy.org/partner-content/amnh/earthquakes-and-volc
anoes/plate-tectonics/a/plates-on-the-move

http://www.geo.cornell.edu/geology/classes/Geo101/101week9_f05.html

http://scienceline.ucsb.edu/getkey.php#

http://www.tulane.edu/~samelson/eens 1110/protect.htm

"Scientific Method Test 2017" -

1. A scientist conducted an experiment to determine how the amount
of salt in a body of water affects the number of plants that can live in

the water. In this experiment the dependent variable is
_____________.
Your Answer: ​the amount of salt in the water

Correct
+1 / 1 point(s)
2. A scientist hypothesizes that the temperature at which an
alligator's egg is incubated will determine whether the alligator will
be male or female. The independent variable is ____________.
Your Answer: t​ he temperature

Correct
+1 / 1 point(s)
3. In an experiment, the factor that we measure and is on the Y-axis
is called the ____________.
Your Answer: d​ ependent variable

Incorrect
0 / 1 point(s)
4. In an experiment, the one variable that is changed by the
experimenter is called the _____________.
Your Answer: ​constant

Incorrect
0 / 1 point(s)
5. If you were measuring the mass of a fly, you should use
____________.
Your Answer: ​kilograms

Incorrect
0 / 1 point(s)
6. If you wanted to know the volume of water in a small can of soda,
you would use ______________.
Your Answer: L​ iters

Correct
+1 / 1 point(s)
7. A scientist who wants to study the effects of fertilizer on plants
sets up an experiment. Plant A gets no fertilizer, Plant B gets 5 mg.
of fertilizer each day, and Plant C gets 10mg. of fertilizer each day.
Which plant is the control?
Your Answer: P​ lant A

Correct
+1 / 1 point(s)
8. Victoria grows the same bacteria in 20 petri dishes. She places 10
of the dishes in a container with a normal atmosphere. The
remaining dishes she places in a container in which the oxygen level
is double the normal level. She labels the first group "A" and the
second group "B". Which of the following best describes the
groups?
Your Answer: G​ roup A is the control group; Group B is the experimental
group

Correct
+1 / 1 point(s)
9. Homer notices that his shower is covered in a strange green
slime. Homer decides to spray half of the shower with coconut juice

thinking this will kill the slime. He sprays the other half of the shower
with water. After 3 days of "treatment" the green slime on the
coconut juice side of the shower dies. The dependent variable in his
experiment is _____________.
Your Answer: ​the amount of the green slime

Incorrect
0 / 1 point(s)
10. For an experiment, a scientist put lime at the base of tomato
plant A and baking soda at the base of tomato plant B. She then
sealed the plants in plastic bags. Tomato plant A eventually died,
and tomato plant B stayed healthy. What is the Independent Variable
in this experiment?
Your Answer: ​the types of plant grown for the test

Incorrect
0 / 1 point(s)
11. I am trying to clean my bathroom because it has mold on the
bottom. I was told to use oxy clean to get it up. I use oxyclean on
half of the bathroom and water on the other half. The control is:
Your Answer: ​bathroom

Correct
+1 / 1 point(s)
12. A scientist plants two rows of corn for experimentation. She puts
fertilizer on row 1 but does not put fertilizer on row 2. Both rows
receive the same amount of water and light intensity. She checks the
growth of the corn over the course of 5 months. What is a constant
in this experiment.
Your Answer: A​ mount of water

Correct
+1 / 1 point(s)
13. A student wants to conduct an experiment to find out how pulse
rates changes as the length of time spent exercising increases. The
dependent variable will be _____.
Your Answer: ​pulse rate

Correct
+1 / 1 point(s)
14. A student hypothesized that the amount of sunlight a sunflower
plant receives determines the number of sunflower seeds the plant
produces. In her experiment, the number of seeds produced is the
_____.
Your Answer: d​ ependent variable

Correct
+1 / 1 point(s)
15. In a controlled experiment, the independent variable is ____.
Your Answer: ​changed to test the hypothesis - it goes on the x-axis

Correct
+1 / 1 point(s)
16. Sarah wanted to find out if temperature has an effect on the
growth of bread mold. She grew the mold in nine Petri dishes
containing the same amount and type of nutrients. Three were kept
at 0 C, three were kept at 90 C, and three were kept at room
temperature, 27 C. The containers were examined and the growth of

the bread mold was recorded each Friday for five weeks. Which of
the following is her hypothesis?
Your Answer: I​ f the temperature changes then the amount of bread mold
will change.

Incorrect
0 / 1 point(s)
17. Sarah wanted to find out if temperature has an effect on the
growth of bread mold. She grew the mold in nine Petri dishes
containing the same amount and type of nutrients. Three were kept
at 0 C, three were kept at 90 C, and three were kept at room
temperature, 27 C. The containers were examined and the growth of
the bread mold was recorded each Friday for five weeks. The
independent variable is:
Your Answer: g​ rowth of bread mold

Incorrect
0 / 1 point(s)
18. What is the independent variable in the experiment found in the
link below?
Your Answer: t​ he intensity or brightness of the light

Correct
+1 / 1 point(s)
19. In the experiment found on the link, all of the following variables
must be held constant EXCEPT
Your Answer: c​ olor of the light

Correct

+1 / 1 point(s)
20. An unknown substance from planet X has a density of 10 g/mL. It
occupies a volume of 80 mL. What is the mass of this unknown
substance?
Your Answer: 8​ 00 g

Correct
+1 / 1 point(s)
21. A graduated cylinder has 22 mL of water placed in it. An
irregularly shaped rock is then placed in the graduated cylinder and
the volume of the rock and water in the graduated cylinder now
reads 30 mL . The mass of the rock is 24 g. What is the density of the
rock?
Your Answer: ​3 g/cm3

Correct
+1 / 1 point(s)
22. A rectangular solid of unknown density is 5 cm long, 2 cm high,
and 4cm wide. The mass of this solid is 300 grams. Given this
information for this homogeneous material, calculate the density.
Your Answer: ​7.5 g/cm3

Correct
+1 / 1 point(s)
23. Silver has a density of 10.5 g/cm3 and gold has a density of 19.3
g/cm3 . Which would have a greater mass, 5 cm3 of silver or 5 cm3
of gold?
Your Answer: G​ old

Correct
+1 / 1 point(s)
24. A 28.5 g of iron is added to a graduated cylinder containing 45.5
mL of water. The water level rises to the 49.1 mark. Calculate the
density.
Your Answer: 7​ .92 g/cm3

Correct
+1 / 1 point(s)

25. 43.2 m = __________ mm
Your Answer: 4​ 3200

Correct
+1 / 1 point(s)

26. 8700 mL = ________ L
Your Answer: 8​ .7

Correct
+1 / 1 point(s)

27. 5.9 km = _____________ m
Your Answer: ​5900

Correct
+1 / 1 point(s)

28. 756.0 cg = _____________ g
Your Answer: 7​ .56

Correct

+1 / 1 point(s)

29. 23,000 mm = _____________ m
Your Answer: ​23

Correct
+1 / 1 point(s)

30. Metric Unit for Mass
Your Answer: G​ RAMS

Incorrect
0 / 1 point(s)

31. Metric Unit for Density of a Solid
Your Answer: ​g/mL

Incorrect
0 / 1 point(s)

32. Metric Unit for Density of a Liquid
Your Answer: ​cm3/g

Incorrect
0 / 1 point(s)
33. Which appliance is used twice as many hours on the weekends
as it is on weekdays?
Your Answer: F​ ridge

Correct
+1 / 1 point(s)

34.On average, how many hours is the computer used on a
weekday?
Your Answer: ​2

Correct
+1 / 1 point(s)

35. Which 2 objects are the same substance?
Your Answer: 1​ and 4

Correct
+1 / 1 point(s)
36. What would the mass of the gold in B if the volume is 50% of A?
Your Answer: ​500 g

Correct
+1 / 1 point(s)
37. Why does the Oceanic Plate sink below the Continental Plate in
the picture?
Your Answer: T​ he Oceanic Plate made of Basalt is MORE DENSE than
the Continental Plate made of Granite.

Correct
+1 / 1 point(s)
38. Why are mountains such as the Himalayas formed? Study the
picture.
Your Answer: C​ ontinental plates collide with equal density Continental
Plates and are forced upwards.

Correct
+1 / 1 point(s)
39. What volume of silver metal will have a mass of exactly 300.0 g.
The density of silver is 10.5 g/cm3.
Your Answer: 2​ 8.6 cm3

Correct
+1 / 1 point(s)
40. The density of lead is 11.342 g/cm3. What would be the volume of
a 400.0 g sample of this metal?
Your Answer: 3​ 5.3 cm3

Incorrect
0 / 1 point(s)
41. If two objects have the same volume but one has a greater mass,
the one with greater mass
Your Answer: h​ as a lower density

Correct
+1 / 1 point(s)
42. If the density of water is 1 gram/cm3, this means that the mass of
100 cm3 of water should be
Your Answer: ​100 grams

Incorrect
0 / 1 point(s)
43. The density of hot and cold water are different mainly because
Your Answer: t​ he molecules in cold water move faster and are further
apart

Phase Change of Water-
3. Activity: Phase Change of Water
Directions:

● Melt the ice water and record the temperatures every 30 seconds
until you reach the boiling point of water.

● Record the temperatures on the following data table:
​ ​Construct a graph of your results. *​Use Link on Classroom

● Respond to the Critical Thinking Questions
Graph:

Critical Thinking Questions:
1. When did the temperatures stay the same on the graph? Why did

the temperatures stay the same at 2 points during the lab?
In the experiment they stayed the same on 32 and 32.5. I think they
stayed the same because the water needed time to get hotter. It mi

2. How would the graph be different if we tried this experiment with
Gold? Explain: I think the graph would have been different
because gold is more dense. It might off cool down too. Also the
meeting point would be different with gold

3. What is the role of energy during the phase changes?
As the water gets hotter and hotter the Phase changes happen

4. Describe the motion of the molecules throughout the experiment.
Find diagrams that show the motion.

Has the soil gets hotter the molecules starts moving fast and melt.
And when it's too hot the molecules jumps out of the liquid and
becomes a gas.

5. How does the Average Kinetic Energy change throughout the
experiment? (Be specific)

6. Suppose you had 200 mL of ice in one beaker and 400 mL of ice in
another beaker. Compare and explain the following in the beakers
after they have reached the boiling point:

A. Heat Energy
B. Temperature
C. Average Kinetic Energy
D. Specific Heat
E.Latent Heat (Define it)

7. Why do we put water in a car’s engine? Explain:

Although water can be added to the radiator for this purpose, it's
preferable to add a mixture of coolant and water because plain
water can boil before the proper coolant will boil, causing your
engine to overheat

8. Moth crystal Graph-

Phase change quiz-
QUIZ: Phase Changes 2017

Calculate Heat Energy:
Apply the following Equations:
Heat = Mass * Heat of Fusion
Heat = Mass * Change in Temperature * SH
Heat = Mass * Heat of Vaporization

Data Table:

Metal Mass Heat Melting Boili Heat of Specif Heat
of Pt.​ (C) ng Vaporizati ic Energ
Fusio Pt. on Heat y
n (C) (cal/g) (cal/gC (cal)
(cal/g) )

Water 37 g 80 0 100 540 1

Silver 37 g 26 961 2212 2356 0.057

Directions: D​ etermine the Heat Energy required to completely evaporate
the substances in the data table.

*SHOW ALL MATH STEPS
Math Steps (____ out of 4)
A. Water
H= M . Heat of fusion
H= 37g . 80 cal/gc=
H= 2960 cal

H= M . change in temp . SH
H= 37g . 100c . 1 cal/g
H=3700 cal

H= M . heat of vap
H= 37g . 540 cal/g
H= 19980

total = 26640 cal

Scientific Notation:
B. Silver
H= M . hf
H= 37g . 26 cal/g
H= 962 cal
H= M . change in temp . SH
H= 37g . 1251 c . .057 cal/g
H= 2638.359 cal
H= M . heat of vap
H= 37g . 2356
H= 87172 cal
Total= 90736.359

Scientific Notation:

Graph your Results:

Writing (_____ out of 4)
Questions:
1. How are Heat and Temperature different for the following pictures of

boiling​ water? Explain:​ (Hint: Use the Heat equation)

The ocean has way more water than the glass does. There's a lot of water
in the ocean so it's going to take longer to boil than the glass of water.
There is too much water to boil as in the class it won't take as long because
it's not as much water. Also there melting and boiling points are different.
Most importantly there mass isn't the same so the number won´t be the
same for example heat of fusion, heat of vap, etc. it would need a different
heat to boil it. The temperature would have to be different because there's

a lot more water in the ocean than the glass. There change in temperature
would be different.​ ​ I​ think the volume of water affects the rate at which it
boils because the more water, heat wouldn't be able to reach the surface of
water​ that easily.

2. How can you use the unit (cal/gC) to explain the difference between
Water and Silver?
You can use the unit (cal/gC) to explain the difference between water
and silver in many ways.

3. Would it be possible for there to be solid oxygen on another
planet? Explain:
Oxygen Melting Point: -218 C
Oxygen Boiling Point: -183 C

Candy mix lab-

full 36.5
3.5
empty
8.5
m and m
(big) 7

m and m 12.5
(small) 9

marshmall
ow

skittles

Full- 37.24 percent
Empty- 3.57 percent
M and m (big)- 8.67 percent
m and m (small)- 1.14 percent

Mushmellow- 12.75 percent
Skittles- 9.57 percent

Melt, rocks,sand, etc lab-

component mass (g)

full 536

sand 17

big rocks 370

small rocks 16

coarse 63
sand 3

metallic

total= 1005

Full- 536/ 1005= 0533333333
0.533333333 . 100 = 53.33 percent

Sand- 17/1005 = 0.016915423
0.016915423 . 100 = 1.69 percent

Big rocks- 370/1005= 0.3681592
0.3681592 . 100= 236.81592

Small rocks- 16/1005= 0.0159204
0.0159204 . 100= 1.59

Coarse sand- 63/1005= 0.0626866
0.0626866 . 6.27

metallic - 3/1005= 0.0029851
0.0029851 . 100= .289



-Reflection
-the scientific method taught us how to find the I.V and D.V.
-the density unit taught me how to find the mass, volume , and density.

Rocks lab-

component mass (g)

full 536

sand 17

big rocks 370

small rocks 16

coarse 63
sand

metallic 3

total= 1005
Full- 536/ 1005= 0533333333

0.533333333 . 100 = 53.33 percent

Sand- 17/1005 = 0.016915423
0.016915423 . 100 = 1.69 percent

Big rocks- 370/1005= 0.3681592
0.3681592 . 100= 236.81592

Small rocks- 16/1005= 0.0159204
0.0159204 . 100= 1.59
Coarse sand- 63/1005= 0.0626866
0.0626866 . 6.27

metallic - 3/1005= 0.0029851
0.0029851 . 100= .289\

Classifying matters quiz-
QUIZ: Classifying Matter

I. Directions: I​ dentify the following as either a Heterogeneous Mixture,

Homogeneous Mixture, Element or Compound. Write the following letters

in Column B for your choices:

A. Heterogeneous

B. Homogeneous

C. Element

D. Compound

Column A Column B

Salad A

Copper D

Lemonade B

Rocks, sand, gravel C

Salt Water B

Gold D

Sodium Chloride (​ NaCl) B

Air (Oxygen, nitrogen, carbon B
monoxide…)

K2​ S​ O4​ B
A
Twix, snickers, pretzels, popcorn in
a bag

II. Directions:​ Determine the Mass % of each mixture and construct the

appropriate graphs.

Mixture A Mass (g) %

Large Rocks 125 52

Small Rocks 75 31

Coarse Sand 32 13

Iron 9 4

Mixture B Mass (g) %
Large Rocks 205 53
Small Rocks 58 15
Coarse Sand 97 25
Iron 29 7

Calculation Examples (​ Provide 2 Examples showing how you determined
the Mass %)
Large rocks- 205/389= 0.5269 . 100= 53%

iron - 9/241 = 0.0373444 . 100= 4%

Graphs:
Mixture A

Mixture B

Part III.​ Determine the Mass % of Elements in each Compound:
K2​ S​ O4​ ​ - Potassium Sulfate
(Show Math Here)
K (2) 39 78/174= 0.448 . 100 = 45%
S (1) 32 32/174= 0.183908 . 100 = 18%
O (4) 16 64/174= 0.3678161 . 100 = 37%

78+32+64= 174

Na​3​PO4​ ​ - Sodium Phosphate
(Show Math Here)

Na(3)23 69/164= 0.4207 . 100 = 42%
P (1)31 31/164= 0.1890244 . 100 = 19%
O (4)16 64/164= 0.3902439 . 100 = 39%

69 +31+64= 164

Graphs:

IV. Conclusion:
1. Explain the difference between Mixtures and Compounds using data.

Compare the pie charts.
The mixtures are a heterogenous mixture. That means that you can see
hem and separate them. The compounds are Homogeneous mixtures,
meaning you it's a substances that has uniform composition. You can’t
really see it or separate it.

2. ​Explain how you separated the Salt from the Sand. Use as much new
vocabulary as you can.
You use the ring stand to separate the salt from the sand using water. Then
as you get it all out, you only need 20 g of it. After that, boil the water. Wait
until all of the water is gone

Atomic portfolio-   
 
 
 
 

 
A​ tomic​ Structure 



History of Atoms- ​John Dalton introduced a new form of the ancient Greek
idea of ​atoms​ at the beginning of the nineteenth century. In 1897, J.J.
Thomson discovered the electron and suggested the 'plum pudding' model
of the a​ tom.​ In 1911, Rutherford suggested that electrons orbit the atomic
nucleus like planets round the Sun.

Dalton- John Dalton FRS was an English
chemist, physicist, and meteor

Thomson- Sir Joseph John Thomson OM
PRS was an English physicist and Nobel Laureate in Physics, credited with
the discovery and identification of the electron; and with the discovery of
the first subatomic particle.

Rutherford- Ernest Rutherford, 1st Baron
Rutherford of Nelson, OM, FRS was a New Zealand-born British physicist
who came to be known as the father of nuclear physics.


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