Which of the following most likely causes stalactites to form?

• Earthquakes

• Wind erosion

• Water dripping

• Animals burrowing

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Morgan uses balloons to investigate static electricity. Which of the following best explains what will happen when she brings two positively charged balloons close to each other?

• The balloons will move apart.

• One balloon will lose its charge.

• The balloons will come together.

• One balloon will gain a negative charge.

Tags

NGSS.MS-PS2-3

Erosion and weathering can both cause changes to the surface of the Earth. Which of the following happens only because of erosion and NOT because of weathering?

• Rocks form deep underground.

• Rocks become smooth and round.

• Rocks are broken apart into small pieces.

• Rocks are moved from one place to another.

Bryson started creating a bubble map to show some of the common characteristics of the planets in our solar system. Which characteristics should Bryson write in the empty circle of his map?

• Made Mostly of Gas

• Has a Rocky Surface

• Revolves around a Star

• Is a Satellite of Another Planet

Morgan put a flowering plant on her kitchen table. How would the flowers respond to the light coming through the window?

• The flowers would begin to wilt.

• The flowers would change color.

• The flowers would lean toward the window.

• The flowers would open facing away from the window.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Olivia’s school rings a bell to alert students that it is time to start class. When the bell rings, it vibrates. The use of vibrations to send messages is an example of which type of energy?

• Chemical

• Heat

• Light

• Sound

Paul built this model of the Sun, the Moon, and Earth. Which phase of the Moon is shown in Paul’s model?

• Full moon

• New moon

• First quarter

• Third quarter

Tags

NGSS.MS-ESS1-1

In which month will the Northern Hemisphere receive the greatest amount of direct sunlight?

• March

• June

• September

• December

Tags

NGSS.MS-ESS1-1

Chris used a hammer to pound a nail into a wooden board. When the nail was about halfway through the board, he stopped and turned the board upside down. The nail stayed in place in the board. Which of the following acts on the nail to keep it in place in the board?

• Friction

• Gravity

• Magnetism

• Weight

Tags

NGSS.MS-PS2-4

What is the primary function of the cerebrum in the human brain?

• A) Control of voluntary movements

• B) Regulation of heart rate

• C) Coordination of balance

• D) Production of hormones