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| 8419297972 | Matter | Is anything that occupies space(Rock, Wood, Air, Metal, Water, and animals) | 0 | |
| 8419328208 | Element | Is a pure substances that can not be boken down into other substances by chemical means( Gold, Helium, Mecuy, and Oxygen) | 1 | |
| 8419367391 | Element | Basic Ingredintes of matter. The most complex forms of matter are made fom basic element that makeup Humans | 2 | |
| 8419396186 | Four main elemnts to human life | Oxygen(O), Carbon(C) Hydrogen(H), and Nitrogen(N) equal about 96 Percent of human body. | 3 | |
| 8419444639 | The rest of you body | Calcuim(Ca), Phosphorus(P), Potassium(K), Sulfur(S) and a few others | 4 | |
| 8419488943 | Trace Elements | Make up less than (0.01) of your body. | 5 | |
| 8419534558 | Amount of Elements |  | 6 | |
| 8419551670 | Compound | A substances contaning two or more elements that are physically combined in a fixed ratio. For example water(H2O) is a compound that contains the same amount ratio. ( Hydogen cmbined with oxygen) | 7 | |
| 8419621268 | Elements and compounds differ | Compound is a mixtue or substances contaning two or more elements that are chemically combined, Elements are a pure substances on the other hand. | 8 | |
| 8419658425 | Trace Elements in body | 0.15 milligrams of iodine which your thyroid needs. Iron makes up (0.004) percent of body mass. Copper, Fluoride, Manganese, and selenium. | 9 | |
| 8419707549 | Ways to get all of bodies Trace Elements | A well balanced diet | 10 | |
| 8419768080 | Atoms | Invisible, Smallest paticle of an element. Carbon Atom is the smallest peice" | 11 | |
| 8419834730 | Atom make up | Atoms of all elements are made up of even smaller componetes, Called subatomic particles | 12 | |
| 8419855024 | Proton | Is a subatomic particle with a single unit of postive electiacal charge(+) | 13 | |
| 8419867976 | Electron | Is a subatomic particle witha single unit of a negative charge(-) | 14 | |
| 8419884728 | Neutron | Is a subatomic charge that has no electrical charge. | 15 | |
| 8419906797 | Nucleus | An atom's protons and neutrons are tightly packed together, Creating the central core. | 16 | |
| 8419924242 | Helium atom |  | 17 | |
| 8419938468 | Atomic Number | All atoms of a particular element have the same numbe of protons | 18 | |
| 8420028577 | Isotopes | The other fom of elements. Same amount of protons and Electrons but differnt number of Nuetrons. | 19 | |
| 8420073148 | Radioactive Isotopes | The nucules decayes over time giving off radation. In the form of matter or energy. | 20 | |
| 8420150809 | Atoms structure and reacting with other atoms | Electons determine all of this. Electns differ in the amount of energy they have and how tight they are held in by proton in nucules. | 21 | |
| 8420213515 | 3 Subatomic particles in an atom | Protons, Electons, and Nuetrons are in the nucles while the electon wraps around them. | 22 | |
| 8420285156 | What is an Isotope and explain how Radioactive isotopes are useful in Science | Isotopes of an element have the same number of proton in their atom but differnt neutons. And RadioActive help sciecnce, Showing what happens to differnt atoms within an organism. Also show radioactive decay. And can be used in meds to show body scans | 23 | |
| 8420409683 | Electron energy level | 24 | ||
| 8420419935 | Ionic Bonds | Atom transfer an electron to anothe atom. | 25 | |
| 8420431618 | Covalent Bonds | two atoms share electrons | 26 | |
| 8420509806 | Number of bonds | The number of bonds an atom can form usaly equals the higgestnumber of electrons that will fill its highest enegy level | 27 | |
| 8420534704 | Number of bonds | A hydogen atom can accept one additional | 28 | |
| 8420628621 | Number of Bonds | In contast, an oxygen atom can accept two electrons, in its hihest level, so it can form two bonds | 29 | |
| 8420646682 | Molecule | Two or more atoms held together by covlent bonds form a molecule. | 30 | |
| 8420677551 | Chemical Formula | tells you the number and types of atoms in a molecue | 31 | |
| 8420743283 | Structural Formula | Show how atoms in a molecule are linked by bonds | 32 | |
| 8420767023 | Space Filling Moecules | Colered circles show atoms | 33 | |
| 8420779981 | Chemical Reaction | Changes which result in the fomation of one or more new substances ( Som echemical reactions release more energy than they release. | 34 | |
| 8420809127 | Reactions | Starting materials for the reaction( Hydrogen and oxygen.) | 35 | |
| 8420820110 | Product | Ending materials (water) | 36 | |
| 8420839888 | Polar molecule | A molecule in which one side is more positive and the other side is more negative | 37 | |
| 8421020810 | hydrogen bond | weak attraction between a hydrogen atom and another atom | 38 | |
| 8421020811 | Cohesion | Attraction between molecules of the same substance(stronger for water) | 39 | |
| 8421020812 | Adhesion | Force of attraction between different kinds of molecules | 40 | |
| 8421020813 | thermal energy | The total energy of motion in the particles of a substance | 41 | |
| 8421020814 | Water | Is resist to water | 42 | |
| 8421020815 | Temperature | A measure of the average energy of motion of the particles of a substance. | 43 | |
| 8421020816 | Density of ice | A high density substance is more tightly packed. Than a low substance is. In most case the solid state is more dense than liquid state | 44 | |
| 8421020817 | Density of Ice | Ice less dense than liquid water which makes it float | 45 | |
| 8421020818 | solution | mixture of two or more substances in which the molecules of the substances are evenly distributed | 46 | |
| 8421020819 | Solvent | The substance in which the substance dissolves. | 47 | |
| 8421020820 | Solute | Substance that dissolves and is in greater present in a lesser amount | 48 | |
| 8421020821 | aqueous solution | a solution in which water is the solvent inside all cells, in blood, and in plant sap. | 49 | |
| 8421020822 | Acid | compound that forms hydrogen ions (H+) in solution | 50 | |
| 8421020823 | Base | A substance that decreases the hydrogen ion concentration in a solution. | 51 | |
| 8421020824 | pH scale | 0-14 | 52 | |
| 8421020825 | Buffers | Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH | 53 |
