To find the average of a set of numbers, add up all the items and divide by...

• 2

• the minimum

• the maximum

• the number of items

molecule

• a group of atoms near each other

• a group of atoms joined together

• three atoms joined together

• protons and neutrons joined together

Tags

NGSS.MS-PS1-1

If the molecules that make up a sample speed up, what else happens?

• the temperature of the sample increases

• the temperature of the sample decreases

• the temperature of the sample stays the same

• the molecules of the sample slow down

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

temperature

• using a thermometer

• a measure of how hot or cold something is

• when something becomes different over time

• a group of atoms joined together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

To find the average, you must ______ all the numbers and then divide by the number of items.

If the temperature of a rock is absolute zero, what would happen to the molecules?

• they would dissapear

• they would not be moving at all

• they would be moving very fast

• they would be moving very slowly

Tags

NGSS.MS-PS1-4

When things get hotter, their molecules are moving _________.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Mandy earns money by delivering groceries. She earned $4 on Monday, $7 on Tuesday, $5 on Wednesday, $4 on Thursday, and $5 on Friday. What is the average amount of money Mandy earned per day?

• $3

• $4

• $5

• $6

If the temperature of a substance is hot, what are the molecules doing?

• they are moving very slowly

• they are not moving at all

• they are moving in a circular motion

• they are moving very fast

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

True or False: The average of a set of numbers is a good representation of the whole.

• True

• False