Cumulative Review: Science 8

Two objects are held close together. When they are released, they move toward one another. Which conclusion is supported by this evidence?

• The objects are both positively charged.

• The objects are both negatively charged.

• The objects have no charge.

• The objects have opposite charges.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which change will decrease the electric force between two positively charged objects?

• moving them closer together

• moving them farther apart

• adding neutrons

• removing electrons

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A student came late to class and started her notes midway through the lecture. These are the notes she copied:

–Small, rocky object

–Not round, irregular shapes

–Several meters to kilometers

–Make up a belt between Mars and Jupiter

What should she title her notes?

• Comets

• Asteroids

• Meteors

• Meteoroids

Jasmine is late to science class and misses the very beginning of notes for the day. These are Jasmine’s notes:

–Round objects that orbit the Sun

–Not large enough to have enough gravitational pull to clear the path of their orbit

–4 known in the Kuiper Belt (Eris, Haumea, Makemake, and Pluto)

–1 in the asteroid belt (Ceres)

Jasmine later copied the title of the notes from a friend. What title did Jasmine most likely copy?

• Comets

• The Kuiper Belt

• Asteroids

• Dwarf Planets

Look at the image of the moon.

Which moon phase does it show?

• full moon

• third quarter

• waxing gibbous

• waning crescent

Tags

NGSS.MS-ESS1-1

Which describes one event that causes an eclipse?

• Earth’s rotation on its axis

• shadows from clouds covering Earth

• Earth’s shadow covering the moon

• the gravity from the moon and Sun pulling in the same direction

Tags

NGSS.MS-ESS1-1

Sara has made this list to summarize what she learned in science class today:

1. Core

2. Radiation zone

3. Convection zone

What is the best title for her list?

• The Layers of the Interior of the Sun

• The Layers of the Sun

• The Layers of the Atmosphere of the Sun

• The Main Layers of the Sun

Scientists have detected an asteroid that is 700,000,000 km from Earth. About how many astronomical units is that?

• 0.5 AU

• 1 AU

• 3.5 AU

• 4.5 AU

Tags

NGSS.MS-ESS1-3

Examine the image of the Hertzsprung-Russell diagram.

Which characteristic describes the stars indicated by the arrow in the image?

• cool

• hot

• large

• small

Tags

NGSS.HS-ESS1-3

Study this image of space.

What object is shown in this image?

• a nebula

• a red giant

• a supernova

• a neutron star