| Matter | ||
| #1 | The oxygen that we breathe is a molecule made of two oxygen atoms. | True |
| #2 | Molecules are particles that have more than _____ atoms joined together. | one |
| #3 | An atom is the _____ unit of an element. | smallest |
| #4 | Electrons are much smaller than protons and neutrons. They have about _____ times less mass. | 1,800 |
| #5 | a particle with one unit of positive charge | proton |
| Physical Properties | ||
| #1 | Mass is measured in pounds. | False. Mass is measured in grams and kilograms. |
| #2 | Materials such as glass, rubber, and plastic are all called _____. | insulators |
| #3 | this measures how much space matter takes up | volume |
| #4 | a resistance to sinking | buoyancy |
| #5 | amount of matter in an object | mass |
| Changes of States | ||
| #1 | What is needed in order to change the state of matter? | energy |
| #2 | When it rains, _____ happens as gas changes to liquid and falls to the ground. | condensation |
| #3 | Oxygen molecules are usually found as a gas, but at very low temperatures, they can become a(n) _____. | liquid |
| #4 | Most bridges and buildings have _____ joints to allow the object’s volume to change with heat. | expansion |
| #5 | process that changes a gas into a liquid | condensation |
| Chemical Properties | ||
| #1 | Sulfuric acid and nitric acid are both commonly used acids. | True |
| #2 | Elements in the far-left columns of the periodic table are alkali metals. | True |
| #3 | One chemical property of a substance is its _______, or whether or not it can catch fire. | flammability |
| #4 | a way a substance reacts with another substance | chemical property |
| #5 | the process of a liquid changing into a gas | evaporation |
| Random | ||
| #1 | a smaller particle with one unit of negative electric charge | electron |
| #2 | smallest unit of an element | atom |
| #3 | the temperature at which something boils | boiling point |
| #4 | a particle with no electrical charge | neutron |
| #5 | decrease in volume due to change in heat | thermal contraction |
| Final Question | |
| Name as many physical properties as you can. There are at least 15 from this chapter. | mass, weight, volume, density, color, hardness, odor, magnetism, buoyancy, conductor/insulator, malleable, ductile, state, melting/freezing point, boiling point |