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studystack111

science

QuestionAnswer
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.
Created by: ipod1