Choose the right chart

Which TYPE of chart is most appropriate to report the results from this experiment?
Hēmi wants to determine if plants grow better in sunlight or under a lamp, so he sets up two identical pots with seeds and places one near a window and the other under a lamp for a month, recording their growth each week.

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Answer explanation

A time series graph would be most appropriate because they are used to record a change over time.

Which TYPE of chart is most appropriate to report the results from this experiment?
Ana hypothesises that adding salt to water makes it boil faster, so she measures the time it takes for 10 pots of water, 5 with salt and the other without, to reach boiling point on the stove.

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Answer explanation

A bar graph is appropriate to use when comparing averages.

Which TYPE of chart is most appropriate to report the results from this experiment?
Manaia wonders if different music genres affect concentration, so she plays classical music in one room and pop music in another while participants complete a puzzle, timing how long it takes them to finish.

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Answer explanation

A box and whisker plots allows in depth comparison of different groups where there is only one variable.

Which TYPE of chart is most appropriate to report the results from this experiment?
Hemi thinks that eating breakfast improves memory, so he divides his study group into two, where one group eats breakfast before an exam and the other group skips breakfast, comparing their test scores afterward.

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Answer explanation

A box and whisker plots allows in depth comparison of different groups where there is only one variable.

Which TYPE of chart is most appropriate to report the results from this experiment?
Awhina wonders if temperature affects the growth of yeast, so she sets up three containers with sugar and yeast, placing one in the refrigerator, one at room temperature, and one near a heater, observing the amount of yeast growth in each.

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Answer explanation

A box and whisker plots allows in depth comparison of different groups where there is only one variable.

Which TYPE of chart is most appropriate to report the results from this experiment?
Mereana wants to investigate if different types of soil affect plant growth, so she plants seeds in three different soil types - clay, sand, and loam - and measures the height of the plants over a month.

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Answer explanation

A time series graph would be most appropriate because they are used to record a change over time.

Which TYPE of chart is most appropriate to report the results from this experiment?
Aroha is curious about the relationship between screen time and sleep duration, so she collects data on the number of hours her friends spend on electronic devices each day and their self-reported hours of sleep to determine if there is a connection.

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Answer explanation

Scatterplots allow us to determine if their is a relationship between two variables.

Which TYPE of chart is most appropriate to report the results from this experiment?
Tui wants to explore the relationship between caffeine consumption and heart rate, so she measures the heart rate of individuals before and after consuming caffeinated beverages to investigate if caffeine intake affects heart rate.

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Answer explanation

Scatterplots allow us to determine if their is a relationship between two variables.

Which TYPE of chart is most appropriate to report the results from this experiment?
Ethan is curious about the relationship between the angle of a ramp and the speed of a rolling ball. He sets up ramps at different angles and rolls a ball down each one, measuring the speed of the ball to see if there is a connection between ramp angle and speed.

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Answer explanation

Scatterplots allow us to determine if there is a relationship between two variables.

Which TYPE of chart is NOT appropriate to report the results from this experiment?
Liam believes that the height from which a ball is dropped affects the time it takes to reach the ground. He drops balls from 5 different heights and measures the time it takes for each ball to hit the ground to see if there is a pattern between height and falling time.

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Answer explanation

A time series graph looks at a pattern over time. This experiment did not involve a pattern over time.