Nature of Science Review

Besides the biosphere, which of Earth's Spheres would a wild fire immediately affect?^e.7.4

• cryosphere
• geosphere
• atmosphere
• hydrosphere

Which of these parts of the Earth's System are interacting when Rose Bushes grow in a garden? ^e.7.4

• geosphere, cryosphere, and atmosphere
• biosphere, hydrosphere, and cyrosphere
• biosphere, hydrosphere, and atmosphere
• cryosphere, geosphere, and hydrosphere

Which statement is one way the biosphere and atmosphere interact?^e.7.4

• when the dirt of the biosphere washes into the water of the atmosphere
• when the water of the atmosphere erodes the surface of the biosphere
• when the monkeys of the biosphere interact with the air in the atmosphere
• when the air of the atmosphere melts the ice of the biosphere

Sabrina wants to investigate how a whirligig's mass affects the speed at which it travels when dropped. Which variable must Sabrina change during the experiment? ^n.1.1

• the timer
• the drop height 
• the mass of the object
• the place where it is dropped from

Jayden collects data on how the color of cell phone cases affects the change in its temperature after sitting in the sun for an hour ^n.1.1

Which of the following is the test (independent) variable in this experiment?

• the cell phone case size
• the color of the cell phone case
• the temperature
• the amount of time in the sun

Jordan noticed that it rained a lot in Florida during the summer. He collected data at the same time each day and averaged the data for each month. ^n.1.1

What is a constant variable in Jordan's investigations?

• the amount of rainfall
• the change in temperature 
• the amount of days in each month
• the time of day the data was collected

Why is it important for an experiment to be replicated?^n.1.2

• to ensure the data are accurate
• to ensure they remember the procedure
• to observe the effect of the independent variable
• to observe the effect of the dependent variable

Meghan wants to make sure the results of her experiment are accurate. She has repeated the procedure many times. She has recorded and analyzed her data. ^n.1.2

What should be the next step in making sure her results are reliable?

• Communicate her results so other scientists can repeat the procedure
• Do the experiment again with a different procedure  

A cell phone company tested its phones for safe levels of radiation. They repeated the test 1,000 times. The company then hired a team of researchers to replicate the tests. ^n.1.2
Why did the company hire a team to replicate their tests?

• They needed a company to repeat part of the test
• The company believed they tested the phones too many times for their test to be reliable
• The company knows that if research results can be replicated, they are more likely to be reliable
• The company wanted to see if the researchers would obtain the same results with a different procedure.

How is a scientific experiment different from other types of scientific investigations? ^N.1.3

•  scientific experiments never uses the scientific tools
• scientific experiments always involves the use of models
• scientific experiments uses procedures in a random order
• scientific experiments test a hypothesis under controlled conditions