Topic 5. Hypothesis Development

A prediction is making a statement of what will happen in the future.

Write True or False

“an idea that proposes a tentative explanation about a phenomenon or a narrow set of phenomena observed in the natural world “

• Conclusion

• Results

• Methodology

• hypothesis

When is a hypothesis written?

• before you decide on a question

• after the experiment

• before the experiment

• after the conclusion

The independent variable is

• the part the scientist measures

• the part the scientist changes or is testing, do not depend in any other variable

• a letter

The height of bean plants depends on the amount of water they receive.
What is the independent variable?

• Height of plants
• Condition of soil
• Salt or fresh water
• Amount of water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Lemon trees receiving the most water produced the most lemons.
What is the dependent variable (what is measured)?

• Amount of lemons
• Salt or fresh water
• Amount of water
• Type of citrus

Tags

NGSS.MS-LS2-1

A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?

• If plants are placed in direct sunlight, then they will grow more green leaves.

• Plants in places in bright light will grow more green leaves than in dim light.

• If plants are place in clay pots, then they will grow more green leaves than plastic pots.

• If plants are in warmer temperatures, then they will grow more green leaves.

Possible explanation for an observation that can be tested.

• Hypothesis

• Scientific Law

• Scientific theory

• Critical Thinking

What is a dependent variable?

• A variable being tested in an experiment.
• A variable that changes depending on another variable.
• A variable that is kept the same in an experiment.

A hypothesis is an explanation for why a specific occurrence or problem is happening.

Write True or False