Space

Stars are mostly made of:

• hydrogen

• helium

• oxygen

• nitrogen

How does a galaxy stay together?

• movement

• gravity

• heat

• pressure

A _____ has gravity that is so strong that light cannot escape it.

• black hole
• black dwarf
• white dwarf
• neutron star

A _____ is a large collection of stars, dust, and gas.

• galaxy
• nebula
• planet
• star

Earth is found in a spiral galaxy called _____.

• The Milky Way
• Andromeda
• Megellanic Clous
• Proxima Centauri

A _____ is body made of gas, held together by gravity and generates light by nuclear fusion.

• star
• galaxy
• nebula
• black hole

Forces are...

• Amounts of mass

• Energy

• Pushes and pulls

The force shown by the arrow is...

• Engine force

• Air resistance

• Gravity

• Weight

• Mass

The force in the opposite direction (the blue arrow) is...

• Engine force

• Reaction from the ground

• Weight

• Drag

The Newton meter (force meter)reading is...

• 0N

• 0.1N

• 1N

• 10N