In a lava lamp, a waxy substance rises and falls repeatedly. what causes the waxy substance to rise? check all that apply.

The waxy substance is warm. The waxy substance is less dense than the surrounding liquid.

Explanation:

Generally, a lava lamp is made up of wax mixture and a clear surrounding liquid. In principle, the wax in the lava lamp is warmer than the surrounding liquid. In addition, the density of the wax mixture is usually less than the surrounding liquid. When the wax mixture is warmed, it flows through the clear surrounding liquid and exchange heat energy with the liquid.

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under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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