Unit 1 PS Flashcards
What does science study?
The natural world
What are the three major categories of science?
Physical. Earth. Life.
What are the steps to the scientific method?
A. Write a question B. Research and gather Information C. Form a hypothesis D. Test your hypothesis E. Analyze data F. Draw a conclusion
What is a hypothesis?
a possible explanation for a problem using what you know and observe
What is an experiment?
tests the effect of one thing on another using a control;
What is the Independent variable?
The variable that is changed
What is the Dependent variable?
The variable that are observed
What is a constant?
factors that are not changed
What is the scientific theory?
An explanation of things or events or events based on knowledge gained from observations and investigations
What is the scientific law?
a statement about what happens in nature, it is true all the time.
what is the Kinetic Theory?
an explanation of how particles in a gas behave.
The Kinetic Theory says that all matter is made up of what?
Atoms
What is a solids shape and volume?
Definite, Defifite
What is a liquids shape and volume?
Indefinite, Definite
What is a gasses shape and volume?
Indefinite, Indefinite
Solid to liquid?
Melting
Liquid to solid?
Freezing
Liquid to gas?
Evaporation
Gas to liquid?
Condensation
Gas to solid?
Deposition
Solid to gas?
Sublimation
What is plasma?
Matter that has enough energy to overcome the forces in its atoms.
What is amorphous solid?
no pattern shape, irregular.
What is Crystalline solid?
definite, repeating patterned shape.
