4th Grade Physical Science - Lesson 2.1-2.3
8 Questions
| Total Attempts: 117
Forth Grade Physical Science - Review Quiz - Lessons 2. 1 - 2. 3
Questions and Answers
- 1.How did Mr. Harris' experiment with food coloring and water prove that molecules are always in motion?
- 2.Which of the following statements is not true according to Newton's laws?
- A.
If you kick a moving ball, it will keep moving in the same direction at the same speed
- B.
It takes more force for an adult to do a pull-up than a child.
- C.
The reason you don't fall through the floor is that the floor is pushing back against you.
- D.
A toy car in motion will stop rolling if a box is placed in front of it.
- 3.Something that causes an object to begin moving is a
- 4.Fire is what kind of reaction?
- A.
Chemical
- B.
Physical
- C.
Riduculous
- 5.When a substance changes states, it has gone through what kind of change?
- A.
Chemical
- B.
Physical
- C.
Riduculous
- 6.The yellowish-orange color of a flame is caused by
- A.
Glowing dust particles
- B.
Fire
- C.
Burnt gases
- D.
Oxygen
- 7.What are three states of matter?
- 8.You can't see molecules moving in water because
- A.
They move too slowly
- B.
They move too quickly
- C.
They are transparent
- D.
They are too small
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Sample QuestionA quick back and forth motion is called: