17.1

In the figure, the atmosphere is divided vertically into four layers based on _____.

In position B in the diagram, the northern end of Earth's axis is tilted toward the sun. When Earth is in this position, what season is it in the northern hemisphere.

• spring

• summer

• winter

• fall

Tags

NGSS.MS-ESS1-1

Select the letter in the figure that identifies the stratosphere.

• A

• E

• G

• C

Select the appropriate letter in the figure that identifies the month of March.

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-1

Select the appropriate letter in the figure that identifies the month of December.

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-1

What is the correct order (starting from the surface) of Earth’s layers?

• crust, outer core, inner core, mantle

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle

Why are the same fossils on both S. America and Africa?

• Because they swam across the ocean to get to the other side.

• Because they only lived in the ocean.

• Because S. America and Africa used to be connected.

• Because S. American and Africa are the same place

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

What is the atomic number of chlorine?

• 15

• 16

• 17

• 18

Which of the following elements has an atomic number of 17?

• Oxygen

• Chlorine

• Sulfur

• Argon

What is the chemical symbol for the element with atomic number 17?

• Cl

• C

• Ca

• Cr