A substance made by mixing other substances together.
What is a mixture?
100
The thing in an experiment that is controlled by the scientist.
What is the independent variable?
100
A statement that might be true, which can then be tested. A prediction to the answer of the problem.
What is a hypothesis?
100
Examples are desks, bricks, pencil.
What is a solid?
100
The unit we are currently studying in science.
What is chemistry?
200
Mixtures that are easy to identify due to the large size of their particles.
What is a heterogeneous mixture?
200
The thing that is measured in an experiment.
What is the dependent variable?
200
Presenting what you observed in the experiment and figuring out whether it matched your hypothesis.
What is a conclusion?
200
Examples are water, juice, blood, syrup.
What is a liquid?
200
When a substance CANNOT be dissolved in a liquid.
What is insoluble?
300
The substances that have the same parts that are mixed together and when things are completely dissolved.
What is a homogeneous mixture?
300
This variable is something in an experiment that is kept the same.
What is the control variable?
300
Recording the results of the experiment.
What is the analysis?
300
Examples are carbon dioxide and helium.
What is a gas?
300
When a substance CAN be dissolved in a liquid.
What is soluble?
400
The stuff that is being dissolved in a homogenous mixture.
What is a solute?
400
You are conducting an experiment on whether a lack of sleep can make you gain weight. The variable you are looking at is the amount of sleep.
What is the independent variable?
400
A list of all of all the things you will need in an experiment.
What are the materials?
400
Anything in the universe that has mass, and takes up space and volume. It comes in 3 states (solid, liquid and gas).
What is matter?
400
In a heterogeneous mixture, these are the small particles of one substance are evenly distributed throughout another substance suspended in the solution rather than fully dissolved. (examples: cheese, toothpaste, ice cream, fog)
What is a suspension?
500
The stuff doing the dissolving in a homogeneous mixture.
What is a solvent?
500
You are conducting an experiment on whether tomato plants grown with music have more tomatoes. The variable you are looking at is the number of tomatoes.
What is the dependent variable?
500
The process how scientists correctly arrive at new knowledge, and update their previous knowledge. It consists of systematic observation, measurement, experiment, and the formulation of questions or hypotheses.
What is the scientific method?
500
A table for arranging the chemical elements. The chemical elements are the basic substances that make up all matter.
What is the periodic table?
500
In a heterogeneous mixture, these are the particles do not dissolve and will separate over time (example: sand and water).