7th Grade Science Review 2025

Front

What is an element?

Back

An element is a substance that cannot be broken down into simpler substances.

Front

How many elements are in the following list: Oxygen (O), Sodium Chloride (NaCl), Gold (Au), Neon (Ne)?

Back

3

Front

What happens to particles of a substance when the temperature decreases?

Back

Particles move slower and come closer together.

Front

In an energy pyramid, which organism has the least amount of energy available?

Back

Top Predator.

Front

What is radiation?

Back

Radiation is the transfer of energy through space, such as the sun heating the Earth.

Front

What is the symbol for Gold?

Back

Au.

Front

What is the symbol for Oxygen?

Back

O.

Front

What is Sodium Chloride commonly known as?

Back

Table salt.

Front

What are producers in an energy pyramid?

Back

Organisms that produce energy through photosynthesis.

Front

What are herbivores?

Back

Animals that eat plants.