Science Review

• gas

• liquid

• vapor

• solid

• The balloon will be attracted to the rod.

• The balloon will be repelled by the rod.

• The balloon will remain in place.

• The balloon will spin in circles.

• heat energy only.

• heat and light energy.

• light and motion energy.

• light energy only.

• a sled and ice.

• sandpaper and wood.

• sandpaper and metal

• tires and ice.

• mechanical energy

• electrical energy

• sound energy

• chemical energy

• 0 N to the right

• 3 N to the right

• 6 N to the right

• 9 N to the right

• A

• B

• C

• D

• nail

• crayon

• eraser

• pencil lead

• the water in a cup

• a clear plastic bag

• the air inside a room

• a piece of glass in a door

• hot objects

• speed of light

• light and heat

• lightning flashes