Part A Observe the substances in the test tubes for 15 minutes. In the table, describe what’s happening in each test tube, including any evidence of a chemical reaction.

Remember that evidence of chemical reactions can include change in color, change in smell, change in temperature, formation of a solid, or formation of bubbles. If there’s no observable change in a test tube, write “no reaction.”

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.