Space HW 5/21

There are many objects in a galaxy. Which of the following Milky Way objects can best be observed without a telescope?

• dust

• gases

• stars

• asteroids

Caterina went out at night with binoculars and saw thousands of stars. Where are almost all these stars located?

• in the Milky Way

• in a different galaxy

• in the solar system

• beyond the Milky Way

What would an astronomer expect to find in a galaxy?

• stars, but not planets

• planets, but not stars

• stars, planets, and other objects

• planest, gases, and a single star

Rebecca made a diagram of our solar system. Which characteristic is NOT true of all planets in our solar system?

• They orbit the Sun.

• They rotate on an axis.

• They have an atmosphere.

• They have moons.

During a trip to a planetarium, Greg learned that the outer planets are Jupiter, Saturn, Uranus, and Neptune. Which statement describes the four outer planets?

• They do not have rings.

• They do not have moons

• They are mostly made of gas.

• They have rocky surfaces and volcanoes.

Planets are ordered at different distances from the Sun. Which two planets are closer to the Sun than Earth is?

• Mars and Jupiter

• Mars and Mercury

• Venus and Jupiter

• Mercury and Venus

Duc drew this diagram. What does it show?

• planets and moons

• the Milky Way galaxy

• the Sun and the planets

• comets and asteroids

Ben drew this picture of part of the solar system. What are the many scattered dots that he drew between the orbits of Mars and Jupiter most likely to be?

• comets

• asteriods

• hundreds of dwarf planets

• moons that orbit the planets

How is an asteroid different from a planet?

• It is smaller.

• It is in orbit around the Sun.

• It is outside of the solar system.

• It has a long tail made of dust and gas.

Venus is sometimes called the "evening star" when it is seen in the western sky after sunset. Why is this NOT an accurate name for Venus?

• Venus is a planet, not a star.

• Planets can be seen in the sky only after sunset.

• Other stars can be seen in the sky after sunset.

• Venus can be seen during the day, but not in the evening.