Disappearing Act, Remote Control Roller

When you rub a balloon on your hair, it becomes filled with ______.

• protons

• electricity

• electrons

• fabrics

The balloon can ______ the can without touching it.

• push

• wield

• attract

• dissolve

A neutrally charged object has an equal number of ______ and protons.

• atoms

• electrons

• ions

• magnets

Like charges ______ each other, while opposite charges attract.

• destroy

• change

• repel

• generate

Rubbing fabrics in the dryer causes ______ electricity.

• protonic

• nuclear

• static

• solar

Many animals remain hidden by using their ability to ______ with the environment.

• blend in

• stick out

• move fast

• jump over

The balloon is ______, so you can see right through it.

• reflective

• invisible

• transparent

• visible

Owls are well ______ in trees because their feathers match the bark.

• spotted

• found

• camouflaged

• hidden

When the tiger is still, its ______ is hard to notice in the tall grass.

• shadow

• growl

• smell

• presence

The human brain is better at detecting ______ than still images.

• shapes

• movement

• colors

• background