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Y9 Science revision > Our Planet > Flashcards

Our Planet Flashcards

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Biology 101 flashcards
1
Q

Why is the north and South Pole the coldest places on Earth?

A

Because the sun is barely grazing the south and North Pole and there is barely any energy and light

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2
Q

What would happen if the Earth wasn’t rotating as it went around?

A

One side would be in permanent darkness and one would be in permanent light

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3
Q

What is the imaginary line that runs from the north and south pole called and what is special about it

A

An axis and it’s tilted

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4
Q

Why is there day and night

A

Because while the Earth is orbiting around the Sun it is spinning on its axis and the side that is in front of the sun is in day and the other side is in night.

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5
Q

What determines year length

A

How long the Earth takes to rotate around the Sun

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6
Q

Why do seasons happen

A

Seasons happen because Earth’s axis is tilted and one side tilts more towards the sun than the other side. When it’s summer we are tilted towards the rays of the sun and when it’s winter we are tilted away.

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7
Q

Order of the planets

A

Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

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8
Q

Constellation definiton

A

A group of stars that form a recognizable pattern that is traditionally named after its apparent form or identified with a mythological creature

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9
Q

What is Matariki and how is it celebrated

A

Matariki is a star cluster of 9 stars that symbolize the Māori new year. If the stars were clear and bright it used to symbolize a good harvest. Matariki is celebrated by having a feast

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10
Q

What are three other names for Matariki

A

Pleiades in English, Makali’i in Hawaiian and Subaru in Japanese

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11
Q

What is the first matariki star and what does it symbolize

A

Matariki(Alcyone)- the reflection of the past and gathering

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12
Q

What is the second matariki star and what does it symbolize

A

Pohutukawa(Sterope)- Lost people/dead and connection to past and ancestry

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13
Q

What is the third matariki star and what does it symbolize

A

Waiti(Maia)- Fresh water e.g., lakes, streams, freshwater species

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14
Q

What is the fourth matariki star and what does it symbolize

A

Waita- Bodies of salt water like oceans and ocean dwelling life

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15
Q

What is the fifth matariki star and what does it symbolize

A

Waipuna-a-rangi(Electra)- Life giving water like rain, hail and snow

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16
Q

What is the sixth matariki star and what does it symbolize

A

Tupuanuku(Pleione)- Food that can be harvested from the ground

17
Q

What is the seventh matariki star and what does it symbolize

A

Tupuarangi(Atlas)- Trees, forests and all that live within

18
Q

What is the eighth matariki star and what does it symbolize

A

Ururangi(Merope)- The winds

19
Q

What is the ninth matariki star and what does it symbolize

A

Hiwa-te-rangi(Hiwa, Celaeno)- Wishing star (It’s tapu)

20
Q

What is the atmosphere

A

Clouds, gases, weather (Particles in the air)

21
Q

What is the Biosphere

A

Anything living, eco systems

22
Q

What is the Hydrosphere

A

Water in solid or liquid form like ocean, ice, snow

23
Q

What is the Lithosphere/Geosphere

A

System associated with solid parts of Earth like rocks and soil

24
Q

What is Pangaea

A

When all the continents were joined together into one big landmass

25
Q

What is Laurasia and Gondwana

A

When the landmass was split up into 2 huge continents

26
Q

2 ways to prove continental drift exists

A
  • Same fossils in 2 different continents and same shapes with the two continents
27
Q

What is the continental drift theory

A

It is the hypothesis that Earth’s continents have moved over time and evolved to be separate from each other

28
Q

What is the structure of the earth

A

Crust- Solid rocks
Mantle- Molten rocks
Outer core- Liquid, Iron and Nickel
Inner core- Solid, Iron and Nickel

29
Q

Characteristics of summer

A
  • Sun rays are concentrated
  • Smaller area
  • Sun is higher in the sky
30
Q

Characteristics of winter

A
  • Sun rays are spread out
  • Less concentrated, not as warm
  • Sun is lower in the sky

Y9 Science revision (6 decks)

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