Grade 5 · Science · Engineering

5th Grade Plan Fair Tests worksheets

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Plan Fair Tests

Grade 5 Science Worksheet

NameDate

Read each part of the test. Circle what it is.

1.
Test: Which brand of popcorn pops the most kernels? What is "the cooking time" in this test?
- the one thing you change
- what you measure
- what you keep the same
2.
Test: Which soil holds the most water? What is "the amount of soil" in this test?
- the one thing you change
- what you measure
- what you keep the same
3.
Test: Which detergent removes the most stain? What is "how much of the stain is gone" in this test?
- the one thing you change
- what you measure
- what you keep the same
4.
Test: Does the size of a parachute change how fast it falls? What is "the size of the parachute" in this test?
- the one thing you change
- what you measure
- what you keep the same
5.
Test: Does the color of a cup change how fast water warms in the sun? What is "the starting temperature" in this test?
- the one thing you change
- what you measure
- what you keep the same
6.
Test: Which paper airplane design flies farthest? What is "the distance flown" in this test?
- the one thing you change
- what you measure
- what you keep the same
7.
Test: Which paper airplane design flies farthest? What is "the design of the plane" in this test?
- the one thing you change
- what you measure
- what you keep the same
8.
Test: Which detergent removes the most stain? What is "the type of detergent" in this test?
- the one thing you change
- what you measure
- what you keep the same
9.
Test: Does the number of batteries change how bright a bulb is? What is "the wires used" in this test?
- the one thing you change
- what you measure
- what you keep the same
10.
Test: Does the color of a cup change how fast water warms in the sun? What is "the color of the cup" in this test?
- the one thing you change
- what you measure
- what you keep the same

5th Grade Plan Fair Tests worksheet 1 – printable PDF — Download PDF: 1 2 3 4 5 6

About this worksheet

A fair test changes only one thing at a time. The one thing you change is the variable you are testing, what you measure is the result, and everything else has to be kept the same, so that any difference in the result is caused by the one thing that changed.

On this fifth grade sheet a child reads ten parts of experiments and circles whether each is the one thing you change, what you measure or what you keep the same. Each version has different tests, and the answer key gives every answer.

What your child will learn

Know what a fair test is
Find the one thing to change
Find what to measure
Name what to keep the same

NGSS standard: 3-5-ETS1-3

Worked example

Test: Which paper towel soaks up the most water? The brand of paper towel is the one thing you change. The amount of water poured must be kept the same.

Common mistake

Changing two things at once, so you cannot tell which one caused the result.

Helpful hint

Ask what the tester decides to try different ways, what they record at the end, and what has to stay equal.

Earlier: Compare Engineering Solutions

Questions parents ask

What is the most common mistake with plan fair tests?

Changing two things at once, so you cannot tell which one caused the result.

How can I help my child with plan fair tests?

Ask what the tester decides to try different ways, what they record at the end, and what has to stay equal.

Are these 5th grade science worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

More 5th grade engineering

See all engineering

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