Compounds

Elements, Compounds and Mixtures

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Elements

An element is a pure chemical substance. Elements are main structure to both compounds and mixtures. It is made up of a single type of atom. Some examples are Oxygen (O₂) and Carbon (C).

Compounds

Compounds are a pure chemical substance made of 2 or more elements. A compound is made using chemical combination. Some examples are Water (H₂O) and Hydrogen Peroxide (H₂O₂).

Multiple Choice

Is the same element combined a compound?

• Yes

• No

Mixtures

Mixtures are NOT a pure chemical substance. A mixture is made by combining 2 or more elements (or compounds) physically. The elements/compounds in a mixture CAN be physically separated. Some examples are Salty Water and Soil.

Multiple Select

Which of the following are mixtures?

• Salad

• Curry

• Chips

• Fire

Multiple Choice

Which one of the below is a heterogenous mixture?

• Smoke

• Lemonade with Ice

• Banana

Open Ended

Do you think white bread is a mixture? No Points will be awarded.