Week 14

Front

What does not emit light waves?

Back

The moon does not emit light waves; it reflects light from the sun.

Front

What is the purpose of insulation materials?

Back

Insulation materials reduce heat loss because they are poor or bad conductors of heat.

Front

How is Earth different from other planets?

Back

Earth has a breathable atmosphere, which supports life.

Front

What creates useful friction in vehicles?

Back

Brakes create useful friction to slow down or stop vehicles.

Front

What shows that the Earth revolves around the Sun?

Back

The Earth revolves around the Sun in an elliptical orbit, similar to how the moon revolves around the Earth.

Front

What is a conductor?

Back

A conductor is a material that allows heat or electricity to pass through it easily.

Front

What is friction?

Back

Friction is the resistance that one surface or object encounters when moving over another.

Front

What is the atmosphere?

Back

The atmosphere is a layer of gases surrounding a planet, which is essential for life on Earth.

Front

What is the role of the Sun in our solar system?

Back

The Sun provides light and heat, which are essential for life on Earth and drives the climate.

Front

What is the difference between reflection and emission of light?

Back

Reflection is when light bounces off a surface, while emission is when an object produces its own light.