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Matter and Volume
Matter and volume
| Question | Answer |
|---|---|
| Matter is anything that has __________ and _____________. | Mass Volume |
| Mass is the amount of ____________ in an object. | Matter |
| Does the mass in an object change? | No |
| What changes the weight of an object? | The amount of gravitational pull on the object. |
| What are the three phases of matter? | Solid, liquid, and gas |
| List the 4 characteristics of a gas | 1) Assumes the shape of its container 2)Assumes the volume of its container 3)Compressible (has lots of free space between particles) 4)Flows easily |
| List the 4 characteristics of a solid | 1)has a fixed shape 2)has a fixed volume 3)Not easily compressible 4)Does not flow easily |
| List the 4 characteristics of a liquid | 1) Assumes the shape of it container 2)has a definite volume 3)Not easily compressible 4)Flows easily |
| What happens to most matter as heat increases? | It changes from a solid to a liquid to a gas. |
| What happens to most matter as its temperature decreases? | It changes from a gas to a liquid to a solid. |
| What is the smallest part of matter? | An atom |
| When 2 or more atoms are put together, it makes a(n) _______________. | Element |
| How can you see an atom? | With a microscope |
| About how many natural elements are there? | 100 |
| Where can you find a listing of all of the elements known? | Periodic table of elements |
| What is the chemical symbol for hydrogen? | H |
| What is the chemical symbol for oxygen? | O |
| What is the chemical symbol for helium? | He |
| What is the chemical symbol for Carbon? | C |
| What is the chemical symbol for potassium? | K |
| When 2 or more elements are combined and they do not loose their identifying characteristics (can be easily separated) a ___________ is created. | Mixture |
| A mixture in which one substance dissolves in another is called a _________. | Solution |
| A _____________ is formed when two or more elements combine to form a new substance. | Compound |
| What is the chemical formula for water? | H2O |
| What is the chemical formula for salt? | NaCl |
| The study of materials at the atomic level (atoms) is called | Nanotechnology |
| What is a nanometer? | One billionth of a meter |
| What are some products benefiting from nanotechnology today? | Sunscreens, scratch-resistant coatings, and medial procedures |
| What always fills its container? | Air |
| Will an object expand or shrink if you heat it? | Expand |
| Oxygen, Nitrogen and Carbon Dioxide are all.... | Gasses |
| The change from a liquid to a gas is called.... | Evaporation |
| 2 H20 has how many water molecules? | 2 water molecules |
| What measurement would you use to measure a liquid? | Liters |
| What instrument do you use to measure mass? | Balance |
| Where can you find a listing of all of the elements known? | Periodic table of elements |