CAST Grade 5 Practice Questions - California Science Test (CAST) - Grade 5 Exam

Which classroom observation is the strongest evidence that a chemical change occurred?

Two colorless liquids form a cloudy orange solid that cannot be filtered back into the originals A student pours water from a tall cup into a short cup An ice cube melts in a sunny window Sand is stirred into water and later settles to the bottom

Correct Answer:

Two colorless liquids form a cloudy orange solid that cannot be filtered back into the originals

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