Section 1.1
Changes to a Substance
Chemical: substance ---> diff. Substance
Ex. Digesting food
Physical: substance ---> substance
Ex. Melting ice
Facts​-observations about the world around us
Hypothesis​-a proposed explanation for a phenomenon made as a starting point for
further investigation
Theory​-a well-substantiated explanation acquired through the scientific method and
repeatedly tested and confirmed through observation and experimentation
We can make predictions using theories
Law-​ a statement based on repeated experimental observations that describes some
phenomenon of nature (usually has a mathematical equation)
Section 1.2
The amount of space an item takes up, calculated using a measurement of your choice
Section 1.3
Reading scales, in a meter stick there