Unit 1 Review Chemistry

Which of the following is a physical change

• Melting Ice

• Burning Wood

• Breaking water into hydrogen and oxygen

• Eating food to give us energy

Tags

NGSS.MS-PS1-4

Rusty Metal is this type of change

• Chemical

• Physical

• Emotional

• Economical

Tags

NGSS.MS-PS1-2

Pure substances are...

• Elements

• Elements and Compounds

• Mixtures

• Compounds

Compounds are made of...

• mixtures

• one element

• two or more elements

Evidence of chemical changes in our lab.

• bubbling only.

• bubbling and temperature change only.

• bubbling, temperature change and color change.

• temperature change only.

The simplest particle making up matter.

• Atom

• Element

• Mixture

• Proton

A characteristic of a substance that can be observed WITHOUT changing it chemically.

• chemical property

• volume

• physical property

• mass

Which of the following substances are elements?

• water

• salt

• carbon dioxide

• hydrogen

Gas production, turning solid, & gaining heat are evidence that

• physical changes occur

• a new substance formed

An element is

• a simple chemical

• a complex chemical

• a simple partilcle made of one type of atom

• a particle made of different types of atoms