A

Students wanted to model the way water erosion can create certain landforms. They let water pour in a thin line over a salt brick for half an hour. The diagram above shows how the brick changed. Which of the following best describes the real-world landform they modeled?

• A delta created by stream deposits

• A canyon carved by a river

• A mountain built by folding rock layers

• Alake filling up with glacial meltwater

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

The chart above shows the kinds of fossils found in a certain region at different depths in the rock layers. The most recent environment for which this sequence of fossils gives us evidence was most likely what?

• Ocean

• Desert

• Forest

• Lake

Tags

NGSS.MS-LS4-1

According to the evidence, which of the following lived in this area at the same time as the dinosaurs?

• Ferns

• Pine trees

• Sharks

• Squirrels

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

When the switch is closed in the illustration above, the bulb will glow. This is because the battery sends what kind of energy through the wire?

• Mechanical

• Electrical

• Sound

• Thermal

Tags

NGSS.4-PS3-2

What kind of energy must be added to change a solid to a liquid?

• Thermal

• Electrical

• Light

• Mechanical

Tags

NGSS.MS-PS1-4

• A

• B

• C

• D

Tags

NGSS.4-PS3-2

• A

• B

• C

• D

What is the atomic number of Helium?

• 1

• 2

• 3

• 4

Which of the following is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Hydrogen

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1