Dive into the world of experiments with this second KS2 Science quiz on investigations! Learn about variables and equipment used to ensure fair results.
Investigations are exciting and involve experiments, predictions, methods, equipment, and variables. Planning investigations in science classes is lots of fun and helps you develop logical and methodical skills. It's also how scientists discover new facts about the world. Explore questions about variables, equipment, and fair tests in this second Investigations quiz!
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You can find more about this topic by visiting BBC Bitesize - Working scientifically
Without a light bulb, buzzer, or motor, you will not be able to see whether electricity can pass through the material you are testing - if electricity can pass through, the buzzer will buzz, the motor will run or the bulb will light up
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The materials are what are being tested so they are the only thing that should be changed
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The dependent variable is the variable you measure - here it would be measured by whether the bulb works
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Only the amount of light should be changed - all other variables would be kept the same
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The dependent variable is the thing we are measuring - in this case, seed germination
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The amount of light might also affect how much the shoots grow, but we are only interested in germination in this investigation
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We are measuring water resistance which can be seen from the amount of time it takes an object to sink - a longer time means more water resistance and a shorter time means less
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Because you would be measuring the amount of time it takes, you would need to measure in seconds
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You would have to make sure the mass (weight) of each of the three shapes was exactly the same
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As it's the shapes we are investigating, only the shapes and nothing else must change
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