This stack describes the properties of matter.

Question Answer
What are elements? Elements are basic kinds of matter.They combine to form other kinds of matter.There are more than 100 elements.
What is weight,and how can you measure it? Weight is a measure of the pull of gravity on an object.Weight changes when the pull of gravity changes.You can measure weight with a spring scale by attaching an object to a spring.Measure how much the spring stretches or tightens.
What is mass,and how can you measure it?
What is volume,and how can you measure it?

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