Question, Hypothesis or Conclusion?

3rd Grade ScienceScientific Method4 pages

About this worksheet

Twelve sentences from three student experiments are sorted into questions, hypotheses and conclusions on this 4-page 3rd grade science sheet. The experiments are salt and ice, plants and light, and paper towels and water, with four sentences of each type. The sorting chart sits on page 2. Part 2 gives three questions, such as which paper towel soaks up the most water, and students write an If ... then hypothesis for each. Page 4 has the sort and a sample hypothesis for every question.

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Curriculum objectives covered

NGSS Science and Engineering Practices, grades 3-5

โ€œAsk questions that can be investigated and predict reasonable outcomes based on patterns such as cause and effect relationships.โ€

Part 1 separates investigable questions from predictions and results. Part 2 asks students to write a prediction as an If ... then statement.

What's inside this worksheet

Part 1 Sort the Sentences

Twelve lettered sentences, A to L, on page 1, such as Does salt make ice melt faster? and The thick paper towel soaked up 5 spoons of water, which was the most. Students write each letter, or copy the sentence, into a QUESTION, HYPOTHESIS or CONCLUSION column on page 2.

Part 2 Write a Hypothesis

Three questions with pictures: paper towels, plants by a window and colored cloths on snow. Each has three writing lines for an If ... then hypothesis.

Answers

The finished sort with four sentences in each column, and a sample If ... then answer for all three questions.

How teachers use it

Spot the starter

Point out that every hypothesis in Part 1 starts with I think and gives a because. The conclusions point back to what happened in the test.

Sort on the desk

Copy page 1, cut the twelve sentences apart and let small groups sort them into three piles. The chart on page 2 then records the sort.

Change and result

In Part 2, ask which part of each If ... then sentence names the change and which names the result. The two halves are easy to mix up.

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