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9/27 (GF) Scientific Method + Unit Conversion Practice - ETM

By Patrick Mazza
Last updated about 2 years ago
11 Questions

Arnaldo heard that a person's height can change between the time that they get out of bed in the morning and the time that they go to bed at night.

He wondered: does how tall a person is really change during the day?

To find out, Arnaldo carefully measured his height at 7 AM and at 10 PM every day for a week.

He recorded his measurements using a table:



After carefully measuring his height at 7 AM and at 10 PM every day for a week and recording the measurments using a table, Arnaldo compared the measurements. He noticed that his height at 7 AM was consistently 166 cm and that his height at 10 PM was consistently 165 cm. His height had changed by 1 cm every day! He also concluded that his height also changed by 1 cm every night. While he lost 1 cm in height between 7 AM and 10 PM, he gained 1 cm in height between 10 PM and 7 AM the next day.

Surprised, he concluded that he had found evidence to support the theory that a person's height can change between the time that they get out of bed in the morning and the time that they go to bed at night. He encouraged his friends and family members to try the same experiment to see if they would find evidence to support the theory as well.

Match the each part of Arnaldo's experiment with the corresponding

Observe a Phenemon or Test a Theory
Define a Question
Set up and collect data
Analyze Data
Share results
Arnaldo heard that a person's height can change between the time that they get out of bed in the morning and the time that they go to bed at night.

He wondered: does how tall a person is really change during the day?

To find out, Arnaldo carefully measured his height at 7 AM and at 10 PM every day for a week.

He recorded his measurements using a table:



After carefully measuring his height at 7 AM and at 10 PM every day for a week and recording the measurments using a table, Arnaldo compared the measurements. He noticed that his height at 7 AM was consistently 166 cm and that his height at 10 PM was consistently 165 cm. His height had changed by 1 cm every day! He also concluded that his height also changed by 1 cm every night. While he lost 1 cm in height between 7 AM and 10 PM, he gained 1 cm in height between 10 PM and 7 AM the next day.

Surprised, he concluded that he had found evidence to support the theory that a person's height can change between the time that they get out of bed in the morning and the time that they go to bed at night. He encouraged his friends and family members to try the same experiment to see if they would find evidence to support the theory as well.

Arnaldo heard that a person's height can change between the time that they get out of bed in the morning and the time that they go to bed at night.

He wondered: does how tall a person is really change during the day?

To find out, Arnaldo carefully measured his height at 7 AM and at 10 PM every day for a week.
He recorded his measurements using a table:


After carefully measuring his height at 7 AM and at 10 PM every day for a week and recording the measurments using a table, Arnaldo compared the measurements. He noticed that his height at 7 AM was consistently 166 cm and that his height at 10 PM was consistently 165 cm. His height had changed by 1 cm every day! He also concluded that his height also changed by 1 cm every night. While he lost 1 cm in height between 7 AM and 10 PM, he gained 1 cm in height between 10 PM and 7 AM the next day.

Surprised, he concluded that he had found evidence to support the theory that a person's height can change between the time that they get out of bed in the morning and the time that they go to bed at night. He encouraged his friends and family members to try the same experiment to see if they would find evidence to support the theory as well.

Ancient sailors noticed that there were rivers of moving water within the oceans. These rivers in the oceans, called ocean currents, effect our weather, our food, and the time it takes for ships to sail from one place to another.

In the 1700's, sailors on the east coast of North America found that in some parts of the ocean their ships would move at a different speed, even if the wind hadn't changed.

They asked: what is causing the change in the speed of the ship?

To find out what was causing the speed of the ship to change, they took measurements of the speed of their ship in different parts of the ocean.

When the sailors analyzed their measurements, they found an ocean current about 10 miles wide that was moving northeast at about 4 miles per hour. We now call the ocean current that they found the Gulf Stream.

The sailors shared what they found, and other sailors were able to use their knowledge of the Gulf Stream to decrease their travel time when sailing across the Atlantic Ocean.






The sailors shared what they found, and other sailors were able to use their knowledge of the Gulf Stream to decrease their travel time when sailing across the Atlantic Ocean.

In the 1700's, sailors on the east coast of North America found that in some parts of the ocean their ships would move at a different speed, even if the wind hadn't changed.

They asked: what is causing the change in the speed of the ship?

To find out what was causing the speed of the ship to change, they took measurements of the speed of their ship in different parts of the ocean.

When the sailors analyzed their measurements, they found an ocean current about 10 miles wide that was moving northeast at about 4 miles per hour.