If an atom could be enlarge to the size of a high school what size would the nucleus be ? A. Penny
B. Basketball
C. Small car
D. Grain of sand

How does a hydroelectric power plant converts energy into energy.

The rules of engagement (roe) working group is often used to (select all that apply.)

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction