6th grade Science 1st Semester Exam

Front

What happens to molecules when they are heated?

Back

They speed up, become less dense, and rise.

Front

What happens to the kinetic energy of a car as it comes to a stop?

Back

It is converted into thermal energy due to friction.

Front

What is the change of state called when ice transforms into water?

Back

Melting.

Front

What is the application of science and mathematics to solve real-life problems?

Back

Engineering.

Front

What type of change is described when hydrogen gas rises through oxygen gas?

Back

Physical Change.

Front

What is kinetic energy?

Back

The energy an object has due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or state.

Front

What is the process of a liquid turning into a gas called?

Back

Evaporation.

Front

What is the process of a gas turning into a liquid called?

Back

Condensation.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.