21st century science physics P1

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  • Created by: annabelle
  • Created on: 21-05-13 18:55
what is an asteroid
irregular lumps of rock, mostly near-circular orbit between mars and jupiter
1 of 10
what is a comet
small object made of rock and ice with very elongated orbits around the sun
2 of 10
the sun is one of thousands of millions of stars in the..?
milky way
3 of 10
the milky way is one of thousands of millions of galaxies that make up the..?
universe
4 of 10
where does the sun get its energy from?
nuclear fusion
5 of 10
what is the process called that breaks up heavy nuclei into lighter ones ?
nuclear fission
6 of 10
how are rocks eroded?
by moving water, glaciers, wind and rockfalls
7 of 10
how are eroded rocks transported?
by the wind, water and ice
8 of 10
what was Alfred Wegeners 1915 theory ?
continental drift, millions of years ago there was a single land mass
9 of 10
what was wegeners evidence for his idea?
the way that the coasts of continents fit together like a jigsaw
10 of 10

Other cards in this set

Card 2

Front

what is a comet

Back

small object made of rock and ice with very elongated orbits around the sun

Card 3

Front

the sun is one of thousands of millions of stars in the..?

Back

Preview of the front of card 3

Card 4

Front

the milky way is one of thousands of millions of galaxies that make up the..?

Back

Preview of the front of card 4

Card 5

Front

where does the sun get its energy from?

Back

Preview of the front of card 5
View more cards

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