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Space > Grade 9 Space Review > Flashcards

Grade 9 Space Review Flashcards

1
Q

Name of Northern Lights

A

Aurora Borealis

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2
Q

Cool Spots on the Sun

A

Sun Spots

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3
Q

Once a meteor hits the Earth, what is it called?

A

Meteorite

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4
Q

Reaction that takes place on the surface of all stars that creates heat and light?

A

Nuclear Fusion

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5
Q

What are the names of the two main gases on stars?

A

Hydrogen and Helium

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6
Q

What colour are cool *(lower temperature) stars?

A

Red

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7
Q

Explosion at the end of a stars life?

A

Super Nova

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8
Q

When the Earth spins on its axis to give us day and night. What is the motion called?

A

Rotation

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9
Q

A group of stars that form a pattern?

A

Constellation

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10
Q

Stars that are directly overhead and never set.

A

Circumpolar

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11
Q

What do you call the longest day of the year that happens on June 21st when the Earth is tilted to receive the most sun light?

A

Summer Solstice

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12
Q

When the Earth, Moon and Sun line up and and the moon casts a shadow on the Earth.

A

Lunar Eclipse

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13
Q

When the Earth travels around the Sun in an orbit to create the season. What is this motion called?

A

Revolution

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14
Q

What are the rocky objects that orbit the sun between Mars and Jupiter?

A

Asteroids

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15
Q

Name 2 effects space has on the human body

A

Fluid shift in ear (balance), Cosmic radiation, Loss of blood, spine elongation, smaller heart, loss of bone mass, muscle atrophy from lack of use.

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16
Q

What is the force that acts on all objects?

A

Gravity

17
Q

What two factors does gravity depend on?

A

Mass and Distance

18
Q

What galaxy do we belong to?

A

Milky Way

19
Q

What is another name for the North Star?

A

Polaris

20
Q

What constellation is Polaris apart of?

A

Tip of Little Dipper

21
Q

What do you call the phase of the moon that is more than half lit?

A

Gibbous

22
Q

What do you call the phase of the moon when you can’t see it?

A

New Moon

23
Q

What is the beginning of a stars life called with swirling dust and gas?

A

Nebula

24
Q

What is the shape of our Galaxy?

A

Spiral

25
Q

What will our sun become once it dies out?

A

White Dwarf

26
Q

What do you call stars that are 30 x bigger than our sun?

A

Super Giant

27
Q

What will happen to a super giant star once it dies out?

A

Becomes a black hole

28
Q

Name 3 reasons why the sun important to us.

A
  1. Start of all food chains,
  2. Keeps us in orbit
  3. Heat and Light
29
Q

What distance is used to measure objects beyond our solar system?

A

Light years

30
Q

What distance is used to measure objects within our solar system?

A

Astronomical Units

31
Q

What is the distance of 1 astronomical unit in kilometres?

A

150 000 000 km

Space (1 decks)

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