For each material, give an example of how that material can go through a physical change and/or how it can go through a chemical change. baking soda: physical change
oxygen: physical and chemical change
hydrogen peroxide: physical change
cake batter: physical change

the answer is 3.1 his answer is wrong mines is right

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!

elctricity and magnet is conversion to it