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Vocabulary
Chemical & Physical Changes
States of Matter
Properties of Matter
Mystery
100
The amount of matter in an object is its ___________.
Mass
100
A physical change (does, does not) change the particles that make up matter.
Does not
100
The three states of matter are _________, __________, and __________.
Solids, liquids, and gases
100
Complete the sentence. The mass of an object does not change unless...
Matter is added or removed
100
True or False? Matter is anything that has mass and is living.
False; matter is also in non-living objects.
200
A change in size, shape, or state of matter is a _________ change.
Physical
200
In a chemical change, particles (are, are not) changed.
Are; In a chemical change, particles are changed to form a new substance
200
_________ have a definite volume and a definite shape.
Solids
200
What two units are used to measure the volume of liquids?
Liter (L) and Milliliters (mL)
200
A stack of papers has a mass of 42 grams. If the papers are torn apart and measured again, what would their new mass be? Explain.
The new mass would be 42 grams because no matter was being added or removed.
300
___________ describes the amount of space that matter takes up.
Volume
300
Breaking a glass represents a ___________ change.
Physical change
300
Name the solid and gas forms of water.
Ice and steam/water vapor
300
Fill in the blanks. To find the volume of a solid, you multiply its ________, _________, and __________.
length, width, height
300
When liquids are frozen into solids, their particles... a. move out into the air b. move farther apart c. move closer together
c. move closer together
400
New substances with different properties are formed by a _________ _________.
Chemical change
400
True or False? Folding a piece of paper changes the particles that are in it.
False, the particles that make up the paper are still the same.
400
Which state of matter does not have a definite shape or volume?
Gas
400
Suppose you have 40 mL of water in a graduated cylinder. After you place a marble in the cylinder, the water level rises to 68 mL. What is the volume of the marble?Explain how you know.
28 mL or 28 cubic centimeters The water began at a volume of 40 mL, then rose to 68 mL. The difference between the two volumes is 28 mL or 28 cubic centimeters (68 - 40 = 28).
400
Compare the densities of two objects or liquids in the graphic on page 327.
Answers may vary
500
The property that compares the mass of an object with its volume is ___________. Explain what this property determines.
Density, which determines whether something will float or sink in a liquid.
500
Toasting bread involves a ________ change. Explain the change that is taking place.
Chemical; bread is turned into toast, so a new product is formed.
500
What does it mean to say that liquid has a definite volume but no definite shape?
Liquid has a certain amount of space that it fills that does not change, but it can change to fit the shape of any container.
500
What units are used to measure the density of solids? Use the equation for finding density to explain your answer.
Grams per cubic centimeter, the equation for calculating density is mass in grams divided by volume in cubic centimeters
500
When measuring the volume of a solid using liquid and graduated cylinders. What units should you use, cubic centimeters or milliliters? Explain
You should use cubic centimeters because those are the units used to measure the volume of a solid, even though you used liquid to find the volume.