Chemistry (1)

What is studied in Chemistry?

• the composition of matter and changes it undergoes

• all living organisms and their interaction with the environment

• the processes that built and continually shape and change the Earth

• energy, motion and how they interact

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Alchemists, the first people who tried to understand matter and how to change them, were primarily concerned with ...

• changing other materials to gold

• answering the question what is matter made up of

• looking for application of the knowledge in chemistry

• inventing techniques that can later be used in the laboratory

The part of an experiment that do not change so that the results will be credible and valid.

• constant

• independent variable

• dependent variable

• units

The scientific method begins with ...

• observation

• experiment

• hypothesis

• analysis

_________________ has mass and takes up space.

• matter
• energy

Tags

NGSS.MS-PS1-5

Soil (dirt), a salad, and sugar water are all examples of _______.

• mixtures
• compounds

How do liquid water, ice, and water vapor differ from each other?

• They are different states of matter.
• They are different compounds.

Tags

NGSS.MS-PS1-4

Tearing Paper

• Physical Change
• Chemical Change

Baking Cookies

• Physical Change
• Chemical Change

Crushing a Can

• Physical Change
• Chemical Change