Mass
Mass is:
A. The amount of matter in something
B. The mass of matter compared to its volume
C. Anything that takes up space
D. Matter with no definite shape or volume
A. The amount of matter in something
Matter is:
A. The mass of matter compared to its volume
B. A mixture in which different kinds of matter mix evenly
C. Anything that takes up space
D. The amount of space matter takes up
C. Anything that takes up space
Density is:
A. The amount of matter in something
B. The mass of matter compared to its volume
C.Matter with a volume that stays the same but a shape that changes
D. The amount of space that matter takes up
A solution is:
A. Matter with no definite shape or volume
B. A mixture in which different kinds of matter mix evenly
C. Matter with a volume that stays the same but a shape that changes
D. The amount of matter in something
B. A mixture in which different kinds of matter mix evenly
Which is a chemical change?
A. burning wood
B. cutting cloth
C. folding paper
D. mixing salt and water
A. burning wood
Kevin needs to measure the mass of an apple. What tool can he use?
A. a balance
B. a barometer
C. a ruler
D. a thermometer
A. a balance
A. gas, oil, water
B. liquid, water, ice
C. solid, liquid, gas
D. solid, penny, liquid
C. solid, liquid, gas
Which one of the following has the greatest density?
A. one quart of cotton balls
B. one quart of feathers
C. one quart of jelly beans
D. one quart of rocks
D. one quart of rocks
Mica makes a salad of oranges, apples, and bananas. What is the bowl of fruit salad an example of?
A. condensation
B. evaporation
C. a mixture
D. a solution
C. a mixture
Which group of words names the physical properties of matter?
A. mirror, wool, cotton
B. salt, candy, sugar
C. sour, green, hot
D. tall, building, glass
C. sour, green, hot
Which item would have the most mass?
A. a flower
B. a car
C. a person
D. a television
B. a car
Which of the following is matter that you can not see?
A. air
B. clouds
C. ice
D. water
A. air
True or false:
Density is how much something weighs.
False: density is the mass of matter COMPARED to its VOLUME.
Which of these is an example of a solution?
A. cereal and milk
B. ice cream and nuts
C. orange and apple slices
D. sugar and water
D. sugar and water
If Dayz combined cereal with strawberries and blueberries would that be a physical or chemical change? Why?
It is a physical change because the different components can all be taken back out and returned to their original state.
Which has the least amount of mass?
A. an ounce
B. a pound
C. a ton
D. a cup
a. an ounce
Matter with no definite shape or volume is:
A. solid
B. liquid
C. gas
D. water
C. gas
Jayden popped some popcorn and cooked some rice. He measured a cup of each and compared the volumes. Determine which is denser the popcorn or the rice. Explain.
The volumes of the popcorn and rice are the same, one cup. Rice has a greater mass than popped popcorn which is mostly air. The rice is denser, because density is the mass of matter compared to its volume.
What is the difference between a solution and a mixture?
A solution is when two or more substances chemically combine whereas in a mixture they do not.
Ms. Scholl baked a cake for her friend's birthday. Is this an example of a physical or chemical change? Why?
This is a chemical change because the ingredients for the cake can never be taken back out and returned to their original state.
Janet knows the mass of some peanuts and the mass of some pretzels. She mixes them together to make trail mix. How can she determine the mass of the trail mix if she doesn't have a tool to measure it? Explain.
She can add the mass of the peanuts and pretzels to find the mass of the trail mix. The mass of two or more things together is the sum of their separate masses.
Julia had a large bowl of ice cubes. She left the bowl out in the hot sun for a couple of hours. What happened to the ice cubes? Explain.
The heat from the sun melted the solid ice cubes, causing them to change to liquid water.
Charlie is testing whether things sink or float. He puts a plastic-foam board in the water. Predict whether the board will sink or float. Explain your reasoning.
The plastic foam board will float because plastic-foam is not very dense. An object that is less dense than water will float.
Give an example of a solution or a mixture. How do you know that it is a solution/ mixture?
Answers vary.
Describe either a physical or chemical change. How do you know that it is physical/ chemical?
Chemical changes: baking, burning, digesting food, souring milk, rusting
Physical changes: mixing bead colors, toys in a toy-box, mixing oil and water, a bouquet of flowers