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Elements and Compounds Basics

A Grade 1 science worksheet introducing basic concepts of elements and compounds.

Grade 1 Science ChemistryElements and Compounds
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Includes

TextMultiple ChoiceFill in the BlanksTrue / FalseShort AnswerWord Bank

Standards

5-PS1-15-PS1-2

Topics

elementscompoundschemistrygrade 1science
8 sections · Free to use · Printable
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Elements and Compounds Basics

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Follow the instructions for each section. Read carefully and do your best!

Everything around us is made of tiny, tiny pieces! Some pieces are called elements, and some are compounds.

1. Which of these is a simple building block that cannot be broken down into something even simpler?

a

Compound

b

Element

c

Mixture

d

Molecule

2. Water is a   because it is made of two different elements joined together.

3. An   is a pure substance that cannot be broken down into simpler substances.

4. All compounds are made of only one type of element.

T

True

F

False

5. Oxygen is an element we breathe.

T

True

F

False

6. Look at the picture of an atom. Is an atom an element or a compound? Explain why.

Bohr model of an atom

Use the words below to complete the sentences.

element
compound
water
oxygen

7. Air has an   called   that we need to breathe.

8. When hydrogen and oxygen join, they make a   called  .