Universe Test Review

The Sun appears much larger than other stars when viewed from Earth. What is the main reason for this?

• The Sun is brighter than all other stars.

• The Sun is the hottest star in the universe.

• The Sun is closer to Earth than other stars.

• The Sun is larger than all other stars.

Lily is writing a science report on space objects. She includes a drawing of a system with many stars, gas, and dust. What is she most likely illustrating?

• A comet

• A solar system

• A galaxy

• An asteroid belt

A galaxy is best described as:

• A system with one star and planets orbiting it.

• A group of planets orbiting a single large planet.

• A collection of gas, dust, and billions of stars.

• A large planet with many moons.

Scientists estimate that there are billions of stars in the Milky Way. Which statement about the Milky Way is true?

• The Milky Way is the only galaxy in the universe.

• The Milky Way is a solar system with many planets.

• The Milky Way is the galaxy that includes our Sun.

• The Milky Way orbits around a giant planet.

What is the best description of the Sun?

• The Sun is the largest planet in our solar system.

• The Sun is a star that is closer to Earth than other stars.

• The Sun is a moon that reflects the light of other stars.

• The Sun is a planet that provides heat and light.

A scientist is studying a planet that has a Great Dark Spot. Which planet is she likely observing?

• Jupiter

• Saturn

• Neptune

• Uranus

A student sees a shooting star in the night sky. What is she most likely seeing?

• A star

• A planet

• A meteor

• A comet

Mia creates a model of the solar system. Which of the following would make her model most accurate?

• Placing the planets in the correct order from the Sun.

• Making all the planets the same size.

• Showing the planets the same distance apart.

• Placing the Earth at the center of the solar system.

Andrew groups planets into two categories. One group contains Mercury, Venus, Earth, and Mars. The other group contains Jupiter, Saturn, Uranus, and Neptune. What characteristic is he using to sort the planets?

• Planets with rings

• Planets that have moons

• Planets with long revolutions

• Planets that are the same size

Which planets in our solar system have rings made of rock, ice, and dust?

• Jupiter, Saturn, Uranus, and Neptune

• Mercury, Venus, Earth, and Mars

• Saturn, Earth, Jupiter, and Neptune

• Uranus, Mars, Mercury, and Saturn