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Vocabulary
Measuring Matter
Classifying Matter
Changes in Matter
Miscellaneous
100
Carbon dioxide is an example of a _____________ 1. element 2. chemical bond 3. chemical formula 4. compound 5. mixture
compound
100
What is the equation for density?
Density = Mass/volume
100
What is matter?
anything that has mass and takes up space (volume)
100
What compound is formed when two hydrogen atoms are bonded with one oxygen atom?
H2O
100
What is an example of something that has buoyancy?
anything that floats is correct
200
The ______________________________ gold is an example a substance made of a single type of atom. 1. Element 2. Chemical bond 3. Chemical formula 4. Compound 5. Mixture
element
200
What is the definition for density? (what does the equation mean?)
The amount of mass (matter) is a certain amount of space (volume)
200
What is an example of a mixture?
answers may vary, must be made of two or more substances together in the same place
200
Give an example of a physical change
answers may vary
200
What are the three particles that make up an atom?
protons, neutrons, and electrons
300
A ______________________________ is the attractive force between two atoms. 1. Element 2. Chemical bond 3. Chemical formula 4. Compound 5. Mixture
chemical bond
300
If a piece of wood has a volume 1500 cm2 and a mass of 750 gram, what is its density?
300 cm2
300
Name three different elements
answers may vary. Ex) carbon, oxygen, nitrogen
300
What is a chemical change?
a change in matter that produces one or more new substances.
300
Why does seal oil float on top of water?
because it is less dense than the water
400
A ______________________________ is formed when two or more substances are together in the same place but are not chemically bonded.
mixture
400
If a piece of wood has a volume 1500 cm2 and a mass of 750 gram, what is its density?
.5 or 1/2 g/cm2
400
What is an example of a heterogenous substance and a homogenous substance?
Answers may vary. Ex) Akutaq and honey
400
What is an example of an endothermic and an exothermic change?
Answers may vary. Endothermic = ice melting. Exothermic = anything burning
400
correctly draw an atom with 6 protons, 6 neutrons, and 6 electrons on the board.
illustrate answer
500
The ______________________________ for the molecule glucose is C6H12O6.
chemical formula
500
If a marble has a density of 2 g/ml and a volume of 6 ml, what must its mass be?
12 grams
500
What is the common name for H2O2?
hydrogen peroxide
500
What is the law of conservation of mass? What is an example of it?
Matter is never created or destroyed in any chemical or physical change. Ex) when you burn wood the atoms do not disappear, some just turn to gas and go into the air.
500
The density for water is 1g/ml. For an object to float in water, what does its density need to be? For an object to sink it water, what must its density be?
For an object to float, its density must be less than 1 g/ml. For an object to sink, it must be greater than 1 g/ml.