23-24

Within the solar system, planets orbit the Sun. What causes planets to orbit the Sun rather than the Sun to orbit the planets?

• The Sun has a greater diameter than the planets.

• The Sun has a greater mass than the planets.

• The Sun is the center of the solar system.

• The Sun is the center of the universe.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

If Earth exerted no gravitational force on the Moon, the Moon would

• follow a straight path away from Earth.

• follow a spiraling path away from Earth.

• crash into the surface of Earth.

• orbit much faster around Earth.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Students were asked to calculate the density of an object using the following measurements: mass = 10 g and volume = 20 cm³. The table shows the calculations of four students. Which student completed the density calculation correctly?

• Student 1

• Student 2

• Student 3

• Student 4

Tags

NGSS.MS-PS1-2

Which of the following physical properties best describe sulfur (S)? Select TWO correct answers.

• dull

• lustrous

• malleable

• brittle

• conductor

List the steps of the scientific method

d

e

f

c

b

a

Ask a question

Conduct experiment

Communicate results

Draw conclusions

Analyze results

Form a hypothesis

Tags

NGSS.HS-PS1-3

NGSS.HS-PS3-4

According to the table showing the percentages of the elements found in the Earth's atmosphere, which element is most abundant?

• Nitrogen

• Oxygen

• Argon

• Carbon Dioxide

According to the table showing the percentages of the elements found in the Earth's atmosphere, which element is the 2nd most abundant?

• Nitrogen

• Oxygen

• Argon

• Carbon Dioxide

Students were asked to classify substances as elements or compounds. Which student classified them all correctly?

• Josie

• Javan

• Pressdan

• Liam

• Jezebel

Tags

NGSS.MS-PS1-1

This image shows a (n) _______, because it is made of

• element/a pure substance

• a compound/two chemically bonded elements

• compound/a pure substance

• a compound/three chemically bonded elements

Tags

NGSS.MS-PS1-1

Analyze the speed graph. During which times is the speed increasing?

• Between 20 and 30 seconds and 40 and 60 seconds

• Between 0 and 20 seconds and 30 and 40 seconds

Tags

NGSS.MS-PS3-1