Elements Substances

Elements, Compounds, and Mixtures

Poll

How much do you know about classifying matter?

• Im an expert

• I have a good working knowledge of it

• I know enough to get by

• aint nobody got time for dat

Essential Questions

How is matter classified based on its composition?

Why is an element a pure substance?

How are compounds represented?

Why is a compound a pure substance?

Multiple Select

Check all the true statements

• All matter is made up of elements.

• A pure substance is a chemical substance that has a uniform and specific composition.

• Mixtures are a combination of pure substances.

• An element is made of one kind of atom

• The Periodic Table of Elements identifies known elements. The Periodic Table of Elements identifies known elements.

Multiple Choice

What are the two characteristics of matter?

• has mass and length

• has elements and mixtures

• length and width

• mass and takes up space

Multiple Select

Which of the following do you think is s pure substance?

• Gold

• Al

• kool-aid

• milk

Multiple Choice

Which of these substances can be a compound?

• CO₂

• C

• O₂

• Red Bull

Multiple Choice

Which one of these is NOT a pure substance?

• Elements

• Mixtures

• Compounds