7th Grade4th Six weeks Review

In the picture you can see Aldrin in his spacesuit. Which of the following is a reason for Buzz Aldrin to wear his space suit?

• provides water for the astronaut

• provides a source of oxygen

• provides for easier walking

• a source of food

One similarity between asteroids, comets and meteoroids is that they ALL-

• are made of rock.

• come from the Oort Cloud.

• come from the Asteroid Belt.

• orbit the sun.

Juan listed the planets in the order that is closest to the sun to furthest from the sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

According to this order, which has the shortest year?

• Jupiter

• Earth

• Saturn

• Mercury

Which of the following lists represents characteristics of both the Sun and the Earth?

• Produce light, Made from rocks, Can be seen from the moon

• Can see craters on their surface, Spherical in shape, Can be seen from the moon

• Have objects orbiting them, Spherical in shape, Can be seen from the moon

• Produce light, Have objects orbiting them, Can see craters on their surface

What is unique about the Earth and the Moon?

• Earth is the only planet in our solar system with one Moon.

• Earth’s Moon is the only moon that reflects light.

• Earth’s Moon is the only one that moves around a planet in a predictable cycle.

• Earth’s Moon is the only one visible from Earth.

Why does the sun appear to be brighter than any other star in the Milky Way?

• The sun is older than all of the other stars in the Milky Way.

• The sun is closer to the Earth than any other star in the Milky Way.

• The sun is hotter than any other star in the Milky Way.

• The sun has more energy than any other star in the Milky Way.

A scientist discovered a new object in the sky that was orbiting the Sun. As it approached the Sun, a tail began to appear. Based on the observations, how should the scientist classify the object?

• an asteroid

• a comet

• a planet

• a moon

What criteria did the student most likely use to separate the two sets of planets?

• planets with and without moons

• planets with water and planets without water

• terrestrial planets and gas giants

• planets with atmospheres and planets without atmospheres

Which of these is an accurate conclusion that can be drawn from this data?

• A. Planets far from the Sun are usually larger.

• B. Planets far from the Sun are close to the size of Earth.

• C. Planets close to the Sun are the same size.

• D. There is no connection between planet size and distance from the Sun.

Sarah listed the planets in the order that is closest to the sun to furthest from the sun: Mercury, Venus, Earth, and Mars

Which characteristics are they all MOST likely to share?

• Composition (Made of rocks and minerals)

• Reflectivity

• Size and Shape

• Size and shape of their orbits