CT NGSS Science Grade 8 Practice Questions - Connecticut NGSS Science Assessment - Grade 8 Exam

A student compares samples of aluminum, copper, and gold. Which statement best describes these pure samples?

Each sample is a mixture of many unrelated elements Each sample is made of only one type of atom Each sample is a living cell with organelles Each sample is a form of energy with no mass

Correct Answer:

Each sample is made of only one type of atom

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