You are heating a piece of glass and now want to pick it up. To be safe, you should _______.

• pour cold water on it

• use tongs

• pick up the end that looks cooler

• use a rag or paper towels

All chemicals in the lab are to be considered dangerous.

• true

• false

Tags

NGSS.HS-ETS1-3

The amount of matter in an object is its _____.

• weight

• mass

• distance

• volume

Tags

NGSS.MS-PS1-1

What would be the best unit of measurement to measure the length of a toothbrush?

• millimeters
• meters
• centimeters
• kilometers

Tags

CCSS.4.MD.A.1

The basic metric unit for volume is the _.

• gram
• meter
• liter

Tags

CCSS.4.MD.A.1

What is the volume of the liquid in this graduated cylinder?

• 8.5 mL 
• 7.5 mL 
• 8 mL 
• .1 mL

Where should the student position himself to read the graduated cylinder properly?

• 
• 
• 
• 

Juan wanted to know if different brands of tires would make his model car go faster. Juan correctly set up an experiment to test 4 different brands of tires on his model car. According to his data table, how many times did Juan test Brand C of tire?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ETS1-3

Juan wanted to know if different brands of tires would make his model car go faster. Juan correctly set up an experiment to test 4 different brands of tires on his model car. According to his data table, which brand appeared to result in the fastest time?

• A

• B

• C

• D

Tags

NGSS.MS-ETS1-3

Students used various temperatures of water to see which one dissolved candy faster.

What was the independent variable?

• amount of candy

• amount of water

• temperature of water

• time for candy to dissolve

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4