click below
click below
Normal Size Small Size show me how
studystack111
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. |