What is the purpose of the newspaper in a solar oven design?

Why do we use black construction paper in the interior of the oven?

Where does the heat come from to cook the food?

Can you tell if the oven is getting hotter by looking at the food?

What type of energy transformations took place in order to cook the food?

What is the purpose of the aluminum foil in your solar oven design?

Which term best describes the phrase “something that happens”?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?