Independent vs Dependent Variables
A way to find answers about the world around us.
What is science?
Matter is anything that takes up space.
What is matter?
Color, odor, size, shape, state of matter, texture, hardness, ability to dissolve, and conductivity.
What are some examples of physical properties of matter?
Liquid to Solid
What is freezing?
The variable that changes in an experiment.
What's an independent variable?
Solid, Liquid, Gas, Plasma, BEC (Bose-Einstein Condensate)
What are the 5 states of matter?
Color, reactivity, and flammability.
What are some examples of chemical properties?
Solid to Liquid
What is melting?
The variable that is influenced by the independent variable in an experiment.
What is a dependent varible
Aurora Bourealis, fluorescent light bulbs, neon signs, stars, and lightning.
What are some examples of plasma?
It is both a physical and chemical property.
Is color a physical or chemical property?
Liquid to Gas
What is vaporization?
A standard of comparison for an experiment-it remains constant.
What is a control?
incredibly slow, touching, vibrated in place.
What is the speed of particle movement in a solid?
It's the same substance after change, atoms don't rearrange, they're generally easy to revert, and no new energy is transferred.
What are some signs of physical change?
Steam to Water
What is Condensation
Says why something happens.
What is scientific theory?
Force holds liquid molecules to other surfaces.
What does adhesive mean?
Atoms are rearranged, changes are generally irreversible without another reaction, gas bubbles are released, energy is often transferred, temperature changes, and light is produced.
What are some signs that a chemical change has occurred?
Solid to Gas
What is sublimation?