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how do people know how much nutritian, calories, fat are in each food product which they maunufacture for others?? even
How do scientist know how many days it took for each planet to travel round the Earth? Where did they get that
How do people get illergic to things?? like tomatoes or clorine?
Where did they name each planet from??
- No comments to display
- Can the students win anything?
- Chat seems to be blocked, what can I do?
- Have you got a video that explains this more easily?
- How can I learn more about these topics?
- How can I stop people from bothering me when I'm trying to take part in I'm a Scientist?