An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Tags

NGSS.MS-LS1-5

If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?

• increase the amount of iron in your blood
• spinach you eat

Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.

• If I make a paper airplane from notebook paper, then it will fly faster than construction paper.
• Yes.
• No.
• I think the construction paper air plane will fly faster.

Tags

NGSS.MS-ETS1-2

NGSS.MS-PS2-2

Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis
• draw conclusions  

Tags

NGSS.MS-LS1-5

NGSS.MS-PS2-3

Rene grew bacteria from the mouth on special plates in the laboratory.  She placed drops of different mouthwashes on bacteria on each plate.

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis   
• draw conclusions

Tags

NGSS.MS-LS1-5

Dana want to know how different are synthetic fibers from natural fibers.

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis
• draw conclusions

Tags

NGSS.MS-PS1-3

Jose saw bats catching insects after dark.  He asked, “How do bats find insects in the dark?”

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis
• draw conclusions

Tags

NGSS.MS-LS1-8

Arjulia soaked six different kinds of seeds in water for 24 hours.  Then she planted the seeds in soil at a depth of 1 cm.  She used the same amount of water, light, and heat for each kind of seed.

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis
• draw conclusions

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Kim’s experiment showed that chicken egg shells were stronger when she gave the hen feed to which extra calcium had been added.

• recognize a problem
• test the hypothesis with an experiment
• form a hypothesis
• draw conclusions

Tags

NGSS.MS-LS1-5

What do these steps describe?
1.  Ask a question
2.  Form a hypothesis
3.  Experiment to test hypothesis
4.  Analyze data
5.  Draw a conclusion

• Order of Operations
• Steps of CPR
• Scientific Method
• Essay writing