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physics4u

4.5
Average: 4.5 (2 votes)
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Varikasta kemiaa

5
Average: 5 (2 votes)
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Sun for all

0
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Africa Student Training in Astrophysical Research and Observation

4
Average: 4 (2 votes)
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The Expanding Universe Experiment

0
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Tasting Tongue

4
Average: 4 (1 vote)
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Observations of the Moon and exploring the lunar surface or "Guide for lunar travelers"

4.333335
Average: 4.3 (6 votes)
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The Sun4all educational activities

5
Average: 5 (1 vote)
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Kännykän käyttö tutkimuksessa

4.25
Average: 4.3 (4 votes)
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Rymdportalen

4
Average: 4 (1 vote)
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