Semester 1 Exam Study Guide

What is an independent variable in an experiment?

• the part you change on purpose

• the data you gather

• educated guess on the outcome

Tags

NGSS.MS-PS2-2

What is a dependent variable in an experiment?

• the part you change on purpose

• the data you gather

• educated guess on the outcome

What is a hypothesis in an experiment?

• the part you change on purpose

• the data you gather

• educated guess on the outcome

Tags

NGSS.MS-LS1-5

Identify the independent variable in the following experiment:

Which liquid will mix with baking soda to make the most explosive volcano?

• the liquid

• explosiveness of volcano

• baking soda

Tags

NGSS.MS-PS1-2

Identify the dependent variable in the following experiment:

Which liquid will mix with baking soda to make the most explosive volcano?

• the liquid

• explosiveness of volcano

• baking soda

Tags

NGSS.MS-PS1-2

Identify the control variable in the following experiment:

Which liquid will mix with baking soda to make the most explosive volcano?

• the liquid

• explosiveness of volcano

• baking soda

Identify the independent variable in the following experiment:

Which type of juice is the most acidic on the pH scale?

• type of juice

• acidity

• juice only used, same pH scale used, same amount of trials

Identify the dependent variable in the following experiment:

Which type of juice is the most acidic on the pH scale?

• type of juice

• acidity

• juice only used, same pH scale used, same amount of trials

Identify the control variable in the following experiment:

Which type of juice is the most acidic on the pH scale?

• type of juice

• acidity

• juice only used, same pH scale used, same amount of trials

What happens if two particles have the same charges?

• they repel

• they attract

• they dissolve

Tags

NGSS.MS-PS2-3