Science Review Grade 9 - Space Unit

What is the difference between the inner planets and the outer planets?

• The outer planets are smaller than the inner planets 
• The inner planets are smaller than the outer planets
• The outer planets have more rocks than the inner planets
• the inner planets are heavier than  the outer planets

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The inner planets are called terrestrial planets because they are composed of

• water
• gas
• frozen surfaces
• rocks

One factor that makes life possible on Earth is

• an atmosphere

• water

• greenhouse effect

• gravity

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^{Objects made of ice, gas and dust and orbit our sun are called:}

• Asteroids
• Comets
• moon
• Meteors

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The luminous celestial body (a bright space object) around which Earth and other planets revolve and from which they receive heat and light.

• satellite
• planet
• sun
• galaxy

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A small object that enters Earth's atmosphere from space and burns due to friction, emitting light.

• meteor
• comet
• asteroid
• star

This round celestial body does not produce its own light, orbits the sun, and is larger than an asteroid.

• meteoroid
• moon
• planet

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NGSS.MS-ESS1-3

What part of the International Space Station did Canada contribute?

• The Columbus Lab
• The Harmony Node
• The Robotic Arm

What is the ISS?

• International Student Services
• Inside Sun Secrets
• International Space Station
• Iraq Space Services

The Hubble telescope was put in space to:

• take images past the atmosphere

• it is closer to the sun

• too big for Earth

• its not really in space