7th grade 1st Semester test

Front

What is the outer layer of the earth called?

Back

Crust

Front

Type of matter made of two or more elements.

Back

Compound

Front

What is a series of steps used by scientists to solve a problem or answer a question?

Back

Scientific method

Front

In the science lab, we should only perform experiments that are:

Back

Authorized by the teacher.

Front

What is the middle of the atom called?

Back

Nucleus

Front

What is the center of the Earth called?

Back

Inner core

Front

What is the process by which plants make their own food?

Back

Photosynthesis

Front

What is the term for a substance that cannot be broken down into simpler substances?

Back

Element

Front

What is the term for a mixture that has a uniform composition?

Back

Homogeneous mixture

Front

What is the term for the negatively charged particles in an atom?

Back

Electrons