1. to harness energy from coal or uranium, the bonds must be broken to change the atom.
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You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.

Renaldo and nasreen build an electromagnet by wrapping a wire around a nail and connecting the wire to both terminals of a battery. when they test the electromagnet, it can pick up 6 paper clips. their teacher wants all groups to pick up at least 10 paper clips. what could renaldo and nasreen do to increase the number of paper clips their electromagnet picks up?

Match the region to the statement that describes it. 1. political kings and queens rule this type of region. 2. physical cuba is an island nation. 3. economic trade agreements are typical. 4. cultural most of the people here speak french. 5. climate a long growing season improves crop growth.