A. solid
B. solute
C. solution
D. solvent
2. Which is a chemical change?
A. baking a cake
B. breaking a plate
C. folding paper
D. melting ice cream
3. Which best explains what happens when vinegar and baking soda are mixed?
A. A chemical change occurs because it can be reversed.
B. A chemical change occurs because something new is produced.
C. A physical change occurs because it can be reversed.
D. A physical change occurs because something new is produced.
4. Which type of motion does jumping up and down on a trampoline best represent?
A. linear
B. oscillating
C. reciprocating
D. rotational
5. Which type of energy results in objects moving?
A. gravity
B. inertia
C. kinetic
D. potential
6. Which increases friction?
A. applying lotion to your hands
B. greasing a cake pan
C. putting sand on icy roads
D. waxing your skateboard
7. Which two forces act on the person when parachuting?
A. gravity and air resistance
B. gravity and push
C. pull and air resistance
D. pull and push
8.When rain water builds up on roads driving conditions can become very hazardous.
Which best explains why?
A. friction between the road and tires decreases
B. friction between the road and tires increases
C. gravity between the road and tires decreases
D. gravity between the road and tires increases
9. What is the force applied to a machine to do work?
A. effort
B. friction
C. gravity
D. inertia
10. Which is a physical change?
A. burning candle
B. crumpling paper
C. digesting food
D. rotting log