*PS Fact Packet #1-20

What is being measured by a triple beam balance and a digital scale, and in what units?

• mass in grams

• distance in meters

• volume in mL or cm³

• weight in Newtons

What is measured by a meter stick and ruler, and in what units?

• mass in grams

• distance in meters

• volume in cm³ and mL

• temperature in C⁰

What is measured with a ruler or graduated cylinder, and in what units?

• mass in grams

• distance in meters

• volume in mL and cm³

• weight/force in Newtons

Measure of how much mass is contained in a given volume of objects

• Volume

• Mass

• Density

• Speed

An explanation of things based on many observations. It tends to explain natural phenomena.

• Law

• Theory

• Variable

• Hypothesis

Scientific theory that has been tested many times and is generally accepted as true. Often mathematics is used to prove the explanation. Ex. Gravity

• Theory

• Inference

• Hypothesis

• Law

Tags

NGSS.HS-PS2-1

What variable is changed in an experiment?

• Independent variable

• Dependent variable

• Control

• Constants

What variable is measured due to what was changed in an experiemnt?

• Independent variable

• Dependent variable

• Control

• Constants

What variable receives no independent variable's change, so is used to compare the changed variable to it and helps have a controlled experiment?

• Independent variable

• Dependent variable

• Control

• Constants

Tags

NGSS.MS-PS2-2

This variable helps control an experiment by keeping everything the same, except the variable that is changed.

• Independent variable

• Dependent variable

• Control

• Constants