What are the two main factors in the mantle that contribute to the rock cycle?
A.
weathering and layering
B.
heat and weathering
C.
pressure and heat
D.
layering and pressure

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

What must be in balance for temperatures to remain constant?

When scientists are ready to publish the results of their experimentation, why is it important for them to include a description of the procedures they used?