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Matter
Physical and Chemical Changes
| Question | Answer |
|---|---|
| What happens when water boils? | The liquid water becomes a gas |
| If a chemical change happens, what observations might you see? | Change in color or odor |
| If a physical change happens, what observations might you see? | Change in size or shape |
| What happens to a sugar cube that is placed into a cup of hot water? | It dissolves |
| Materials combine to create a new compound: | Chemical Change |
| Materials mix, but a new compound is not made: | Physical change |
| What are the 3 States of matter? | Solid, liquid and gas |
| Anything that has mass and takes up space is know as: | Matter |
| Ice melting is a chemical change (T/F) | FALSE |
| Baking powder fizzing is a chemical change (T/F) | TRUE |
| Salt added to water is a physical change (T/F) | TRUE |
| What is solid water? | Ice |
| What is produced when water is boiled? | Steam (Water in the form of a gas) |
| Water at room temperature is a liquid (T/F) | TRUE |
| Which of these 2 liquids is a mixture, made of parts that can be separated by filtration? (Distilled water, orange juice, milk, salt water, sugar water) | salt water and sugar water |
| Physical changes change the matter into something completely different. T/F | FALSE |
| Physical changes begin and end with the same compounds | TRUE |
| You can filter salt out of water by pouring the solution through filter paper, but what is the BEST and most efficient way to separate the salt from the water? | Heat the solution to boiling and evaporate off the water |
| How can you change ice to liquid water? | Apply heat |
| To make something warmer | Increase temperature |
| To make something colder | Decrease temperature |
| Molecules move faster as heat is increased T/F | TRUE |
| Burning wood and turning into ask in a fireplace is know as a mixture. (T/F) | FALSE |
| When wood burns there is a size, shape and color change. There is gas (smoke) and a smell involved. These are clues that help you to know that a ______________ change took place. | Chemical |
| Rocks, shells and other particles are mixed together to form soil. This is an example of a ____________ | Mixture |
| Mass, volume, shape, size, density and color are examples of: | Properties of matter |
| How tightly packed particles are in an object | Density |
| If an object floats, it is ________ dense than the water | less |
| If an object sinks, it is ________ dense than the water | more |
| Amount of space an object takes up is known as: | Volume |
| The pull of gravity on an object is known as: | Weight |
| The amount of matter inside an object is known as: | Mass |
| When a solid changes to a liquid, It's called the _________ point. | Melting |
| When a liquid changes to a solid, it is called the ________ point. | Freezing |
| When a liquid changes to a gas, it is called the ________ point. | Boiling |
| When a liquid changes to a gas without boiling, it is called ________ | Evaporation |
| When a gas changes into a liquid (drops of water), it is called ________ | Condensation |
Created by:
apetrillo
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