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science
| Question | Answer |
|---|---|
| 1.A physical change is a change in of matter. | state |
| 2.A chemical change is when | one or more new substances are formedwith new properties.The atoms change and a new substance is formed. |
| 3.List physical properties of water. | It is clear wet and a liquid |
| 4.An example of a chemical property is | a firework |
| 5.The Statue of Liberty turning green is an example of a change. | chemical |
| 6.Water changing from a liquid to a solid is an example of change. | physical |
| Pennies coroding chemical or physical change? | chemical |
| Paper tearing chemical or physical change? | physical |
| Burning fossil fuels chemical or physical change? | chemical |
| Glass breaking chemical or physical? | physical |
| Mixing chalk and vinegar chemical or physical change? | chemical |
| Dry ice interacting with the air chemical or physical? | physical |
| Slice of an apple interacting with air chemical or physical change? | chemical |
| Ice in room temperature chemical or physical change? | physical |
| Steel woolinteracting with air chemical or physical change? | chemical |
| Candle burning chemical or physical change? | wick chemical wax physical |
| Alka seltzer interacting with vinegar chemical or physical change? | chemical |
| Iron rusting chemical or physical change? | chemical |
| 7.What is oxidation? | is a reaction to oxygen |
| 8.What is sublimation? | is something going directly from a solid to a gas |
| 9.Draw what the molecules of a solid look like. | Draw 100 cicrles close together |
| 10.Draw what the molecules of a liquid look like. | Draw 50 circles kinda spread apart |
| 11.Draw what the molecules of a gas look like. | Draw 5 circles really spread apart |
| 12.Draw what the molecules of a plasma look like. | Draw 2 circles super mondo spread apart |
| 13.Write down a state of matter and an example. | Solid,steel |
| 14.Write down a state of matter and an example. | Liquid,water |
| 15.Write down a state of matter and an example. | Gas,oxygen |
| 16.Write down a state of matter and an example. | Plasma,star |
| 17.True or False atoms are made of protons,nuetrons, and electrons? | True |
| 18.True or False during a physical change, a new substance is formed? | False |
| 19.True or False liquid changing into a gas is condensation? | False |
| 20.True or False burning an object is a type of chemical change? | True |
| 21.True or False Gas changing into a liquid is precipitation ? | True |
| 22. True or False heat being created is evidence of a physical change? | False |
| 23. True or False molecules are made of two or more atoms bonded together? | True |
| 24. True or False digestion is a type of physical change? | True |
| 25. True or False in a chemical change, something brand new is created? | True |
| 26.Draw and label an atom of oxygen | Draw 8 protons,8 neutrons,and 8 electrons |
| 27.Draw and label an atom of carbon | Draw 6 protons,6 neutrons,and 6 electrons |
| 28.Explain how a chemical change and a physical change are different. Give examples of each in your explanation. | A chemical change is something you can not change back like the Statue of Liberty rusting. A physical change is when you just change the state of matter, like ice melting into water and water freezing to ice. |