Matter is anything that takes up space in a black area. For example: a couch, a cup, a toy car, or even a marble.

Also, matter is made up of atoms. All matter.

An atom is “the smallest unit if a chemical element.”

It can not be split no more than that.

An element is only made from one kind of atom.
Some example include, gold (Au), oxygen (O2), and iron (Fe). These are only some of the elements. All are listed in a periodic table.

A molecule is two or more atoms form together. Sometimes may be the same type or a different type. Some examples could be: water, salt, sugar, and more.

Compounds are when two or more different atoms are formed together. All compounds are molecules, but not all molecules are compounds.

Coefficients are the number that is in front of an atom that tells you how many molecules of that specific atom or atoms.

To find how many atoms you will need to make these molecules, you multiply the coefficient with the subscripts. For example: 2 H = two Hydrogen atoms. If there is no coefficients, there is automatically a 1 in the coefficients place. Same goes with subscripts.

Subscripts tell you how many atoms of each element for that molecule. It is the tiny number in the right side of the element. So for example, H2 (pretend that’s a tiny 2) = two atoms of hydrogen. If there is no tiny number, it’s a one.

Photosynthesis is the process by whose plants make their own food. We give it carbon dioxide and water and it gives us oxygen and glucose.

The process by which the cells of all living things break apart glucose to real ease energy. Like us humans, we eat food and it gives us energy.