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How much weight can a tractor lift? Untestable! Not comparing two or more objects. Unsafe Materials not easily accessible.

Published byRolf Owen Modified over 9 years ago

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Presentation on theme: "How much weight can a tractor lift? Untestable! Not comparing two or more objects. Unsafe Materials not easily accessible."— Presentation transcript:

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2 How much weight can a tractor lift? Untestable! Not comparing two or more objects. Unsafe Materials not easily accessible

3 Does the cost of batteries affect how long they last? Testable! Have easy access to these supplies. Comparing two or more objects (batteries). Measurable – Can time how long they last.

4 How long does it take to get to Wal-Mart? Untestable! You aren’t comparing two or more things. 5 th graders can’t drive… And you shouldn’t be using your parents very much.

5 How far below the ground do tree roots go? Untestable! How would you test or measure this? Can’t dig up the tree.

6 Does the weight of a paper airplane affect how far they travel? Testable! Comparing two or more things (different weights of paper or different types of paper). Easily measurable – Measure the distance

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