scientific method

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

The summary at the end of an experiment that explains the results. 

• conclusion
• procedures
• materials
• responding variable

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 grows in the same mass of soil, receives the same hours of light, and listens to the same music. In this investigation, what are the controlled variables?

• Type of plant, mass of soil, same hours of light, same music played

• Water, apple juice, milk

• mass of soil, types of liquids, same hours of sunlight

• different plants, different music, same liquid used

Which is NOT a step in the scientific method?

• Make observation

• an experiment is not conducted

• Collect data

• Form a hypothesis

Paper planes were constructed using newspaper. The planes were thrown at 3 pm in a field, to see which model reached the furthest. Which of the following are control variables?

• different types of paper, same starting line, same time of the day

• same mass of paper used, same starting line, same time of the day

• different age group, same mass of paper used, different time of the day

• different starting line, different type of paper used, different time of the day

Before beginning an experiment you must first make a detailed ____.

• Hypothesis

• Conclusion

• Plan

• Experiment

To make observations you use your _______.

• senses

• feet

• smile

• experience

Tags

NGSS.4-LS1-2

NGSS.5-PS1-3

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Constants in an investigation should be kept ......

• different

• the same

• kind of the same

• none of the above

Is a variable that remains unchanged to prevent it from affecting the outcome of an investigation.

• Control

• Constant

• Independent Variable

• Dependent Variable