7th grade 1st Semester test

Front

What charge do electrons have?

Back

Electrons have a negative charge.

Front

What is the outer layer of the Earth called?

Back

The outer layer of the Earth is called the Crust.

Front

What is the first step in the scientific method?

Back

The first step in the scientific method is to ask a question or make an observation.

Front

When can lab waste materials be poured down the drain?

Back

Lab waste materials can only be poured down the drain if the teacher gives you permission.

Front

Can broken glass be picked up with bare hands?

Back

False, broken glass should not be picked up with bare hands.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is a hypothesis?

Back

A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

Front

What is the purpose of a control in an experiment?

Back

The purpose of a control is to provide a standard for comparison, ensuring that the results are due to the variable being tested.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.

Front

What is the role of a variable in an experiment?

Back

A variable is any factor that can change in an experiment, affecting the outcome.