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11h
Space.com on MSNMars is covered in evidence of ancient lakes, rain and snow — but scientists aren't sure how that's possibleThough Mars, the Red Planet, is a vast and inhospitable land today, scientists think it once resembled our very own Earth — ...
This Live Lesson, created in collaboration with Blue Planet Live, is designed to help you bring Earth's rich marine life into your classroom. Guided by CBBC's Naomi Wilkinson and expert wildlife ...
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