Scientific Method

When making an observation, you must use...

• Only Sight
• Smell & Touch
• ALL 5 Senses
• Only Taste

During this step of the scientific method, a scientist would gather background information. 

• Hypothesis
• Research
• Observation
• Experiment 

This step of the scientific method is an educated guess or a prediction. 

• Hypothesis
• Research
• Observation
• Conclusion

Which one is an example of Qualitative Data?

• 25 Pounds
• 30 Seconds 
• 2 Meters
• Soft

Which is an example of Quantitative Data?

• 42 grams
• Hard
• Squishy
• Blue

The independent variable is what you _______ during an experiment.

• change
• do not change 
• measure
• count

The dependent variable in an experiment is what you ________________. 

• Change
• Measure

This is the group that we will compare our experimental group to. This group stays "normal."

• Control Group
• Experimental Group
•  Normal Group
• Weird Group

Some researchers are developing a new fertilizer designed to improve the growth of plants in hot, dry climates. The fertilizer was applied to one hundred desert plants in a greenhouse. The average daytime temperature in the greenhouse was 90°F, and the humidity levels were low. Which is best for the researchers to do next?

• A compare plants that received fertilizer to similar plants that received none

• B begin selling the fertilizer to gardeners living in hot, dry climates

• C change the conditions in the greenhouse and retest the fertilizer

• D test the fertilizer on plants that are adapted to cooler climates

A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?

• the amount of carbon dioxide in each container

• the number of plants in each container

• the amount of water provided to the plants

• the height of each plant after a period of time