definitions and descriptions
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| What are physical properties? | Properties of matter that do not change the chemical nature.
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| What are chemical properties? | properties of matter that do change the chemical nature matter will be changed into a new substance after the reaction
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| (Physical or Chemical) properties of a substance can be easily observed | physical
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| One can use thier 5 senses to determine the (Physical or Chemical) properties of a substance | physical
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| (Physical or Chemical) properties usually describe how a substance reacts | chemical
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| (Physical or Chemical) properties are not as easy to observe | chemical
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| (Physical or Chemical) properties can be used to identify substances | both
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| (Physical or Chemical) oxygen is odorless and colorless | physical
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| (Physical or Chemical) copper turns green when exposed to the environment | chemical
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| (Physical or Chemical) the piece of metal is magnetic | physical
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| (Physical or Chemical) the density of water is 1.0 gram per cubic centimeter | physical
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| (Physical or Chemical) Diamonds are a very hard substance | physical
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| (Physical or Chemical) the tree is 8 meters high | physical
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| (Physical or Chemical) sodium reacts very easily with other elements | chemical
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| (Physical or Chemical) copper conducts electricity | physical
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| (Physical or Chemical) water is a liquid | physical
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| (Physical or Chemical) The mass of the Nacl sample is 30 grams | physical
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| (Physical or Chemical) gold is nonflammable | chemical
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| (Physical or Chemical) Alka-Seltzer tablets react with water to produce gas | chemical
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| (Physical or Chemical) the color of the ball is red | physical
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| (Physical or Chemical) Iron reacts with water to form rust | chemical
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| (Physical or Chemical) the boiling point of water is 100 c | physical
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| (Physical or Chemical) baking soda reacts with vinegar | chemical
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| (Physical or Chemical) the gas is flammable | chemical
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| (Physical or Chemical) oxygen is a gas | physical
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| (Physical or Chemical) Aragon is not very reactive | chemical
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| (Physical or Chemical) nitrogen is a colorless gas | physical
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| (Physical or Chemical) the silver spoons tarnished and turned dark | chemical
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| (Physical or Chemical) the piece of metal is magnetic | physical
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| (Physical or Chemical) A students shirt suddenly bursts into flames | chemical
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| (Physical or Chemical) silver necklaces tarnish and turn green | chemical
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| True or False: With a physical change, no new substance is formed. | true
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| True or False: With a chemical change, a chemical reaction occurs. | true
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| True or False: With a physical change, energy is either given off or absorbed. | false
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| True or False: A chemical change can be easily reversed. | false
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| True or False: A catalyst speeds up a chemical reaction. | true
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| When does a physical change occur? | when the size,shape or state of matter changes
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| What type of change can be reversed? | physical change
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| What would cause the molecules in matter to change? | extreme heat
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| If a substance changes color, what most likely happened? | a chemical change has taken place
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| Stepping on a bag of potato chips would be what kind of change? | physical change
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| What is a clue that a chemical change has taken place? | a gas forms when the change takes place
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| When autumn leaves change form green to red, orange and yellow, what has occurred? | a chemical change has occurred
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| What type of change has occurred when a nail rusts | a chemical change
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| What kinds of chemical changes happen inside of your body? | food is broken down by enzymes in your stomach
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| What type of change has happened when an apple core has turned brown? | chemical change
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| What type of change is weathering? | physical change
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| How can salt be made? | in a chemical reaction between sodium and chlorine
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| Example of a chemical change that happens over a period of time | rusting of metal
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| What type of change occurs when glass breaks? | physical change
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| Solubility is what kind of change | physical change
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