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Froggy Jumps
Froggy Jumps

Grade 8 science quiz

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Grade 8 science quiz

Froggy Jumps

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About this activity

Test your knowledge on lenses, the human eye, and light behavior in this fun optics quiz!

Created by

Karson Kelemen
Karson Kelemen
Canada

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Grade 8 science quiz
 

Froggy Jumps

Grade 8 science quizOnline version

Test your knowledge on lenses, the human eye, and light behavior in this fun optics quiz!

by Karson Kelemen
1

What part of the human eye controls the amount of light entering?

2

What type of lens is thicker in the middle than at the edges?

3

What is the bending of light as it passes from one medium to another called?

4

Which part of the eye is responsible for converting light into neural signals?

5

What type of lens is used to correct nearsightedness?

6

What is the name of the transparent front part of the eye?

7

What phenomenon occurs when light bounces off a surface?

8

What is the focal point of a lens?

9

Which lens type is used in magnifying glasses?

10

What is the main function of the pupil in the eye?

11

What is diffusion?

12

What process describes water moving through a semi-permeable membrane?

13

Which of the following is a homogeneous mixture?

14

What is a characteristic of heterogeneous mixtures?

15

Which of the following is a pure substance?

16

What type of mixture is a suspension?

17

Which term describes a mixture that appears uniform?

18

What is the main difference between solutions and suspensions?

19

What happens to the concentration of a solution when more solute is added?

20

Which process is essential for plant water uptake?

21

What is mechanical gain?

22

What does a gear ratio represent?

23

Which of the following is NOT a simple machine?

24

What is the primary function of hydraulics?

25

Pneumatics primarily uses what type of medium?

26

What is the advantage of using gear ratios?

27

Which simple machine uses a wheel and axle?

28

What is a common application of hydraulics?

29

In pneumatics, what is the role of a compressor?

30

Which principle does a lever operate on?

31

What is hydrology primarily concerned with?

32

Which cycle describes the movement of water through the environment?

33

What is the term for the area where water collects underground?

34

What is precipitation?

35

What is the main driver of the water cycle?

36

What is the term for the land area that drains into a river?

37

Which process involves water vapor turning into liquid?

38

What is the term for the maximum amount of water soil can hold?

39

What is groundwater?

40

What is the primary source of freshwater on Earth?

 
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