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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Challenge Problems
Push your limits with challenges.
Question 1
A chemist has three beakers: one with distilled water, one with saltwater, and one with a mixture of sand and salt. Describe how they would separate each component from the mixtures.
Solution: To separate the salt from the saltwater, the chemist could use evaporation. For the sand and salt mixture, filtration would separate the sand from the salt and water solution, leaving them distinct.
Hint: Remember what methods are used for separation.
💡 Hint: No hint provided
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