This would be an appropriate metric unit to measure the length of a highway
What is a Kilometer
100
In this group, the experiment takes place under normal, standard conditions.
What is the control group?
100
How should the total overall mass of a system compare before and after a chemical change?
It should be the same
100
This is an example of non-matter
What is light, heat, sound, etc.
100
Mr. Menna combined 2 clear colorless solutions. He soon observed a chalky white solid floating at the top. Is the a physical or chemical change?
What is a chemical change?
200
This tool could be used to measure the mass of an object
What is a balance
200
Experiments should be able to be described as this, which refers to an experiment's ability to be carried out by other scientists.
What is replicable?
200
When yeast is added to dough, carbon dioxide gas is released, which results in the 'rising' that is observed. What kind of change is responsible for this?
What is a chemical change
200
How could you separate a lighter liquid, like oil, from a more dense liquid, like water?
What are flotation and skimming?
200
This is a good way to study real life events or processes that are large, dangerous, or complex.
What is a model or simulation
300
This property describes how a substance (usually a solid) feels
What is texture?
300
This is the variable that is manipulated by the researcher in the experimental group
What is the independent variable.
300
Making Kool-Aid usually results in color change. Is this a result of a physical or chemical change?
What is a physical change
300
This property allows metallic particles to be separated from non-metallic particles in a mixture.
What is magnetism
300
This refers to ideas that are not directly observed, but rather are concluded based on observations
What are inferences?
400
This method allows us to measure the volume of irregularly shaped objects.
What is the Displacement method
400
These are the factors that must be kept the same throughout the experiment to isolate the independent variable.
What are Constant (fixed) variables.
400
This refers to a change in matter from liquid to gas below the substance's boiling point.
What is evaporation?
400
Solutions are a physical change, and as such can be reversed. How can the dissolving of salt in water be reversed to recover solid salt?
What is evaporation or boiling?
400
Luna is doing a field study on butterflies. In her log book, under "Observations," she wrote, "The butterflies have a strange way of flying" What is the problem with this?
It's an opinion rather than a verifiable observation
500
A property described by the amount of matter per unit of volume
What is Density
500
This variable is measured to determine the outcome of the experiment.
What is the dependent variable?
500
This refers to a change in matter from solid to a gas; as in dry ice.
What is sublimation
500
This tool is ideal for separating larger, coarse particles from smaller, fine particles; as in panning for gold or separating seashells from sand.
What is a sieve
500
This word refers to observations that are described with words rather than numbers.