sc yr 4 12.11.2021

ANSWER THE QUESTIONS IN YOUR SCIENCE EXERCISE BOOK.
1. This material allows all the light to pass through it. This material is ……………..
A. Transparent
B. Translucent
C. Opaque

2. It does not allow any light to pass through it. The material is ………….
A. Transparent
B. Translucent
C. Opaque

3. It allows some light to pass it. The material is ……………….
A. Opaque
B. Transparent
C. Translucent

4. What is "Reflection of light"?
A. The light that shines on you is actually reflected in the mirror.
B. The rainbow formation is shining.
C. The ray diagram

5. The bending of light as it passes at an angle from one type of matter into another.
A. Reflection
B. Refraction
C. Transparent

6. Sue Ern's grandfather has a problem to read small print in a newspaper. Which way that
can be used so that the print can be seen clearer and bigger?
A. Reading print from a mirror.
B. Using a clear bottle filled with water.
C. Using a transparent plastic sheet.

7. Which statement is correct about the refraction of light?
A. Light travels in a straight line.
B. Light travels from one medium to another medium.
C. Light travels in all direction.

8. The pencils look bent in water. This is called "refraction of light".
A. True
B. False

9. What is the use of dental mirror?
A. Dentists use dental mirror to examine patients teeth.
B. Dentists use dental mirror to examine patients ears.
C. Dentists use dental mirror to examine patients eyes.

10. Which explains why the fork looks different under water?

A. Light can't pass through the glass.
B. The amount of light increases when going through water.
C. Light is refracted at an angle.

11. Faith and Elijah are using a flashlight and their hands to make shadow puppets. What
property of light creates the shapes on the wall?

A. Light refracts when it passes through their hands.
B. Light travels in a straight line.
C. Light is reflected .

12. Mr. Emanuel was driving his car at night. Another car was approaching him with its
headlights on .What would happen to the car's headlights?
A. The car’s headlights would appear less bright.
B. The car’s headlights would give off more light.
C. The car’s headlights would give off less light.
13. What will happen if one of the cardboard is shifted slightly to the right?

A. The torch can be seen
B. The torch cannot be seen
14. What is the clarity of the shadow formed on a book?

A. Clear
B. Less clear
C. No shadow
15. The illustration shows a light ray striking an object. The light ray is……..

A. Reflected
B. Refracted
C. Absorbed