1 didactic hour


Varikasta kemiaa

5
Average: 5 (2 votes)
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Sun for all

0
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Explore Mars Habitat

0
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Creation Within Evolution

5
Average: 5 (1 vote)
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Invent an Alian

3
Average: 3 (1 vote)
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The Star Finder

3
Average: 3 (1 vote)
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Free Fall

1
Average: 1 (1 vote)
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Making a sun clock

0
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The Moon Atlas

5
Average: 5 (3 votes)
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Observations of stars and stellar systems

4.333335
Average: 4.3 (3 votes)
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