Objects in Space

As comets approach the Sun, they _________________________________.

• become solid rock with floating debris

• become invisible to the human eye

• change to a circular orbit

• develop enormous tails of luminous material

Based on the data in the table, which conclusions can you draw?

• Uranus is the coldest of all the planets

• The farther a planet is from the Sun, the longer it takes to orbit it.

• A day on Earth is longer than a day on Saturn.

• The farther a planet is from the Sun, the shorter its day.

Which object in the solar system is considered a dwarf planet?

• Mercury

• Pluto

• Neptune

• Mars

Where is the Asteroid Belt located?

• Between Jupiter and Mars

• Between Earth and Venus

• Between Jupiter and Saturn

• Between Saturn and Uranus

An object that impacts Earth’s surface is called a

• comet

• meteorite

• asteroid

• meteoroid

Which is the following is arranged from biggest to smallest?

• Universe, constellation, galaxy, solar system

• Galaxy, constellation, universe, solar system

• Universe, galaxy, constellation, solar system

• Galaxy, universe, constellation, solar system

Which three things does an object have to have to be a planet?

• Round shape, rotates, and orbit the sun

• Has a significant mass to clear it's orbital path, orbits the sun, has a moon

• made of rock, Has a significant mass to clear it's orbital path, round shape

• Has a significant mass to clear it's orbital path, round shape, orbits the sun

• There is no way to determine a planet.

A rocky object that breaks off from an Asteroid and floats through space is called a ____________.

• Meteorite

• Comet

• Meteoroid

• Planet

What is this picture of?

• meteor

• meteoroid

• meteorite

• comet

What type of galaxy is this?

• Spiral

• Elliptical

• Irregular