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Lab Equipment and Nature Worksheet

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Lab Equipment and Nature Worksheet

A group is testing whether light intensity affects the growth of seedlings. Work through the equipment, measurement and investigation-design challenges. Use SI units and explain your reasoning.

Choose and use equipment

The seedlings will be measured every two days for two weeks.

1.To measure seedling height from the soil surface to the tip, which tool is most suitable: a 30 cm ruler, a beaker, or a thermometer? Give one reason.

2.The group needs to give each pot exactly 25 mL of water. Should they use a beaker or a graduated cylinder? Explain why.

3.A student reads the water level from above the cylinder instead of at eye level. What measurement error could this cause, and how should the level be read?

Plan a fair test

The group places three similar seedlings in low, medium and high light. Each receives 25 mL of water every second day. The group records height in centimetres.

4.What is the independent variable in this investigation?

5.What is the dependent variable, and how is it measured?

6.Name two variables, other than light intensity, that should be kept the same for a fair test.

7.The group uses only one seedling at each light level. Explain why using several seedlings at each level would make the results more reliable.

Read the results

The table shows the mean height after 14 days. Compare the results before making a conclusion.

Light level

Mean height after 14 days (cm)

Low

4.2

Medium

7.1

High

6.3

8.Which light level produced the tallest seedlings? Use the data to support your answer.

9.Calculate the difference between the mean heights in medium and low light. Include the unit.

10.Does this result prove that medium light always produces the most growth in every plant? State one reason for your answer.

11.Suggest one improvement that would make the investigation more precise or reliable, and explain how it would help.

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More Science Worksheets

Year 5

Lab Equipment and Nature Worksheet

Lab Equipment and Nature Worksheet

Choose and use equipment

Plan a fair test

Read the results

3 printable pages

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

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