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Unit 1-Matter
| to use a tool to learn more about the volume, length or weight of an object | measure |
| to prevent electricity or heat from passing through | insulate |
| a state of matter with a defined volume but no defined shape | liquid |
| an object's mass divided by its volume; a measure of how many particles are packed together into a certain amount of space | density |
| the amount of matter in an object | mass |
| the chart scientists use to organize and classify all the known elements | periodic table |
| a material with a particular chemical makeup | pure substance |
| an object with a north and south pole that produces a magnetic field | magnet |
| describes a substance that will break down another object upon contact | corrosive |
| a state of matter without any defined volume or shape | gas |
| a particular form that matter can take | state of matter |
| an element or compound | chemical |
| the physical matter of which living or nonliving things are composed | substance |
| a natural, solid substance found in rocks; each mineral has a specific chemical makeup | mineral |
| having to do with the eye or lenses | optical |
| describes materials through which light can travel; materials that can be seen through | transparent |
| having to do with electricity; a form of energy commonly used for lights, electric motors, and heating. | electric |
| a material that transmits energy | conductor |
| describes materials that allow some light to travel through them, but not enough to see through the material | translucent |
| matter with a fixed volume and shape | solid |
| the force of gravity on an object | weight |
| material that has mass and takes up some amount of space | matter |
| to group things based on similar characteristics | classify |
| a shiny, dense substance that easily conducts heat and electricity | metal |
| a property of an object that depends upon the wavelengths of light reflected by the object | color |
| a measure of how hot or cold a substance is | temperature |
| a subatomic particle with a negative charge | electron |
| a subatomic particle with no electric charge, located within the nucleus of the atom | neutron |
| a subatomic particle with a positive charge that is located in the nucleus of an atom | proton |
| a pure substance that cannot be broken down into simpler substances by chemical reactions | element |
| the chemical element consisting of one proton and one electron | hydrogen |
| to bring together; to mix | combine |
| two or more atoms joined together | molecule |
| the number of protons in the nucleus of an atom; atomic number determines the chemical properties of the atom | atomic number |
| the center of an atom containing protons and neutrons | nucleus |
| the smallest unit of an element that has the properties of that element | atom |
| an element that is a greenish gas at room temperature | chlorine |
| density, volume, temperature, mass, weight, color, texture and odor | physical properties of matter |
| wax melts in a candle | energy (heat) added to matter |
| rain on the sidewalk becomes ice | energy (heat) removed from matter |
| water turns to steam on the stove | energy (heat) added to matter |
| 3 states of matter | solid, liquid and gas |
| Which state of matter has a lower density? | gas |
| How can water change from one state to another? | ice is heated to make water and water is heated to make steam |
| What will change the property of a material, such as water? | changing the state of the material |
| An ice cube melts to become water in a cup. How are the ice cube and water alike? | They have the same mass. |
| When would the property of a substance change? | when you change the state |
| Are a rock, a glass of water and air made of atoms? | yes |
| Atoms are sometimes called | building blocks of matter |
| 3 parts of an atom are: | proton, neutron and electron |
| Atoms are mostly empty | space |
| How many different kinds of atoms are there? | Over 100 |
| What makes up the nucleus of an atom | proton and neutrons |
| What orbits outside the nucleus? | electrons |
| Protons have what type of charge? | positive |
| Neutrons have what type of charge? | none, they are neutral |
| Electrons have what type of charge? | negative |
Created by:
Pamela Hebert
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