5th Grade Science Review

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity or heat to pass through it easily. Examples include rubber and plastic.

Front

Why is plastic used to cover electrical wires?

Back

Plastic is used to cover electrical wires because it is a good insulator, preventing electricity from escaping and reducing the risk of fire.

Front

What happens when two objects are less dense than water?

Back

They will float on the surface of the water.

Front

What are sound waves?

Back

Sound waves are compression waves that travel through air, water, or solids, allowing us to hear.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the energy of moving particles.

Front

Why do we wear gloves when handling hot objects?

Back

We wear gloves to protect our hands from thermal energy, as metal conducts heat and can cause burns.

Front

What happens when like poles of magnets are brought together?

Back

Like poles of magnets repel each other.

Front

What is density?

Back

Density is the mass of an object divided by its volume. It determines whether an object will float or sink in a fluid.

Front

What is the difference between conductors and insulators?

Back

Conductors allow electricity or heat to flow through them easily, while insulators do not.

Front

What is an example of a conductor?

Back

An example of a conductor is metal, such as copper or aluminum.