WorksheetsModeling Matter
Total questions: 40
Worksheet time: 13mins
Atoms are combined to make _____.
molecules
elements
neutrons
electrons
Chromatography is _________________.
the physical separation of a mixture into its individual components.
the mixing of colors to liquid evidence
when inks and dyes are added to a mixture in pens and markers
Medium in chromatography is...
The material through which the chemical and its solvent travel
The way to cook a perfect hamburger
A liquid into which something will dissolve
A solvent is...
The process of separating a chemical into its components
Someone who has enough money to pay
A liquid into which something will dissolve
True or false? The food coloring was a mixture of separate dyes because we saw that different colored dyes separated out from the original food coloring.
true
false
The food coloring was a _____.
pure substance
mixture
Pure substances are made up of the same kind of atoms.
True
False
What is a molecule?
two or more atoms joined together
a mixture of different substances
smallest individual particles
salt mixed in water
the smallest particle that can still be identified as the matter it came from
energy
atom
electrons
compounds
Scientists conducting research found a new type of plastic. They are doing experiments to learn about its properties. Why would the scientists want to repeat their experiments?
to check that this plastic is the same as another plastic
to make sure the data they collect are accurate
to test different plastics
to try to color the plastic different colors
Which statement is an observation about this picture?
There are washing machines or dryers in the picture.
The woman is at a laundry mat.
Which is an inference about this picture?
There are 2 rows of dryers on the wall.
Someone is stuck in the dryer.
Which of these is an observation?
The dog is 4 years old.
The dog is wearing a hat.
Which of these choices are inferences about the picture.
The gorilla wants a bigger banana.
The gorilla has two eyes.
The gorilla will be hungry after he eats that banana.
Observation or Inference: The cat is scared.
Observation
Inference
Milk is a mixture.
Agree
Disagree
Blood is a mixture.
Agree
Disagree
A group of molecules joined together is called an atom.
Agree
Disagree
You can see a water molecule with your eyes.
Agree
Disagree
A ________ is a material where each part of it is made of the same type of molecule.
powder
mixture
substance
grain
What is a property?
a mixture of materials that dissolve
a combination of two or more substances
a characteristic that can be measured
a material that changes its state of matter
Which of the following is a property that you can observe?
color
hardness
brittleness
all of the above
TRUE or FALSE
You can see a water molecule with your eyes.
TRUE
FALSE
TRUE or FALSE
Chromatography is the only way to separate a mixture of different kinds of molecules.
TRUE
FALSE
TRUE or FALSE
Scientists use the properties of molecules to separate mixtures.
TRUE
FALSE
A cook has containers with several white powders in them. She cannot tell the powders apart by looking at them. Which of the following would help her determine the properties of each powder?
smell each of the powders
taste each of the powders
test if they dissolve in certain liquids
All of the above
In this model, each cup contains a different ...
mixture
substance
inference
Molecules are made up of their own ________.
mixtures
substances
properties
models
What happened in the pasta model when we shook the container?
The lid fell off and sent the pasta all over.
The pasta remained a mixture.
The pasta separated based on inferences.
The pasta separated based on properties.
The marble is smooth.
This is an inference.
This is an observation.
The chromatography model allowed us to see that water molecules were ___________ to the paper molecules, so the water molecules climbed up the paper.
alike
attracted
different
magnetic
To pull on an object, even without touching it:
observe
explain
matter
attract
Information that supports an answer to a question:
detail
evidence
inference
matter
To describe how something works or why something happens
explain
investigation
observe
inference
Something you figure out based on observations and what you already know:
mysteries
evidence
inference
model
Something scientists make to answer questions about the real world.
Model
Inference
Property
Evidence
Able to dissolve in water or another liquid.
Property
Mixture
Soluble
Matter
