Benchmark 2 Review

Students are conducting a test to see if adding different types of fertilizer to plants will help them grow taller. In this experiment, the students are using 5 identical plants, placing all 5 in the sun and supplying them with the same amount of water. The students are using 5 common types of fertilizer. What part of the experiment is the fertilizer?

• the constant control

• the independent variable

• the dependent variable

• the control group

Tags

NGSS.MS-LS2-1

If dogs exercise more, then their behavior will become calmer. What is the independent variable in this hypothesis?

• the dog's behavior

• the amount of exercise

• the breed of dog

• the dogs owner

If a lightbulb has a higher wattage, then the lightbulb will shine brighter. What is the dependent variable in this hypothesis?

• the wattage of the bulb

• the brightness of the bulb

• the size of the bulb

• the shape of the bulb

How many planets are in the solar system?

• 7

• 4

• 8

• 9

Tags

NGSS.MS-ESS1-3

Why are we able to see the moon from Earth?

• it reflects light from Earth

• it reflects light from the sun

• its surface is white

• it is lit from the inside

Which planet in the solar system orbits the sun most rapidly?

• Mercury

• Venus

• Earth

• Jupiter

Tags

NGSS.MS-ESS1-2

Which planet is the largest in our solar system?

• Venus

• Earth

• Saturn

• Jupiter

Tags

NGSS.MS-ESS1-3

Which is the smallest planet in our solar system?

• Earth

• Mars

• Uranus

• Mercury

Tags

NGSS.MS-ESS1-3

What is the name of the planet that is labeled with the X?

• Uranus

• Venus

• Saturn

• Neptune

Tags

NGSS.MS-ESS1-3

Why is the surface of Venus so hot?

• Venus is too close to the sun

• Venus rotates so slowly that the side facing the sun gets very hot

• Venus has a heightened greenhouse effect due to its thick atmosphere

• Venus has a large number of volcanoes