Particles
Matter is anything that takes up space and has mass. Which of the following is NOT an example of matter?
A. Air
B. Ice cube
C. Rainbow
D. Steam
C. Rainbow
When matter is changing states from a liquid to a gas, some of the matter is destroyed.
True or False
False
Something you identify using one or more of your senses
A. inference
B. hypothesis
C. observation
C. observation
What is a synonym for property?
A. Characteristic
B. something you own
C. meaning it is not
A. Characteristic
What is a mixture?
Combining two or more substances, can still be separated.
Everything is made up matter and matter is made up of particles that are so small they cannot be seen by eyesight alone.
True or False
True
Anything that has weight and takes up space is called
Matter
A candle that is lit is an example of both types of changes in matter. The wick burning is what type of change?
Chemical Change
If you have 40 grams of juice and you put it in the freezer, what will the popsicle weigh?
40 grams
A mixture in which all parts are mixed evenly to create a new substance is called a
Solution
The process of a gas changing into a liquid is called
Condensation
Mattison, Jake, and Kole used bag of chocolate to make cookies. They massed the bag before they melted it, it had a mass of 53 grams. What happened to the mass of the bag of chocolates after they melted it in the microwave?
The mass remained the same
Physical
Grace observed 50mL of a clear substance. She poured it from a cup into a bag and noticed that it flowed, and took the shape of the container, but the volume did not change. She then poured it into a container shaped like a box and noticed that again, it flowed and took the shape of the new container, but its volume remained the same. What state of matter was the substance that Grace was observing?
Liquid
How do you know if something is a solution or a mixture?
Whether or not it can be separated.
The air inside a basketball in all options EXCEPT:
A. Density
B. Height
C. Mass
D. Volume
B. Height
Matter can be changed in many ways. Sometimes matter is changed and a new substance is created. This type of change is referred to as a chemical change. Choose 2 examples of changes that metals undergo.
A. termites eating wood
B & D
Pennies turning green & bike rusting
Would spilling bleach on the carpet be a physical change or chemical change?
Chemical Change
Imagine you have a chocolate cake that weighs two pounds. If you slice the cake into ten slices, what will be the weight of all the slices put together?
Two pounds
Karley had a mixture of sand and shells from the beach. He wanted to get the mixture separated into two buckets, one for the sand and the other for the shells. She decided to use a screen or sieve to help him separate the mixture quickly. Which property is she using to help him separate the mixture?
A. Magnetism
B. Solubility
C. Size
D. Texture
C. size
Carlos claims that air is made up of many tiny particles that have mass but are too small to see.
Which observations can be used as evidence to support his claim?
A. rain falling from the clouds
B. leaves moving on a windy day
C. blowing into a balloon to inflate it
D. temperatures rising on a sunny day
E. tossing a basketball through the air
B. leaves moving on a windy day
C. blowing into a balloon to inflate it
A teacher pours water into a glass beaker. She heats the beaker and the liquid begins to boil. Soon it appears as if there is no liquid left in the beaker.
Stephanie claims that the water disappeared. Tony claims that the water did not disappear. Which student’s claim is accurate?
Tony
What is evidence that a chemical change has occured?
Color change, formation of a gas, odor change, temp change.
Sally has two balls that are the same size. Ball A is white, floats on water, and has a mass of 2 grams. Ball B is white, sinks in water, and has a mass of 20 grams. Based on these properties, would ball A most likely be a golf ball or a ping pong ball?
Ping Pong Ball
This is a list of mixtures. Which mixtures are solutions?
A. Salt Water
B. Mixed Salad
C. Air
D. A pizza
E. Cereal with milk
A & C
Salt water & air