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Which form of electromagnetic radiation would be blocked in the stratosphere by ozone?

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Trinidad Tremblay
Trinidad TremblayLv2
26 Feb 2020
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Related questions

Grade 9 Science experiment:

Experiment:  Compare brands of paper towels, to see which holds the most liquid. The independent variable in your experiment would be the brand of paper towel. The dependent variable would be the amount of liquid absorbed by the paper towel.

Come up with a problem, explain how you are going to control the experiment using a dependent variable, and use appropriate formats for displaying the observed and recorded data. 

Experiment Proposal

Note: your purpose, hypothesis, materials, and procedure must be approved before you conduct your experiment!
Purpose: 


Hypothesis: 

Materials: 

Procedure: 

Observations: * Create your observation table here. Use this table to fill in your data during your experiment.

Grade 9 Science experiment:

Experiment:  Compare brands of paper towels, to see which holds the most liquid. The independent variable in your experiment would be the brand of paper towel. The dependent variable would be the amount of liquid absorbed by the paper towel.

Come up with a problem, explain how you are going to control the experiment using a dependent variable, and use appropriate formats for displaying the observed and recorded data. 

Experiment Proposal


Note: your purpose, hypothesis, materials, and procedure must be approved before you conduct your experiment!
Purpose: 


Hypothesis: 


Materials: 


Procedure: 


Observations: * Create your observation table here. Use this table to fill in your data during your experiment.


Conclusion: 

Which would be least helpful in reducing indoor pollution?

A. Having indoor plants

B. Opening windows

C. Installing HEPA filters

D. Increasing the house temperature

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