Your Science Fair Project: Drawing Conclusions

The video explains the final step of the scientific method, which is to draw conclusions. It presents data showing that salt water freezes at a lower temperature than fresh water, supporting the hypothesis that seawater, due to its salt content, freezes at a lower temperature. The conclusion confirms the hypothesis, highlighting the difference in freezing points between fresh and salt water.

What is the final step in the scientific method?

• Formulating a hypothesis

• Conducting experiments

• Making conclusions

• Collecting data

What does the data suggest about the freezing point of salt water compared to fresh water?

• Fresh water freezes at a higher temperature

• Salt water does not freeze

• Both freeze at the same temperature

• Salt water freezes at a higher temperature

Why does seawater freeze at a lower temperature?

• It is denser

• It contains salt

• It has a higher boiling point

• It is more acidic

What was the hypothesis regarding the freezing point of seawater?

• Seawater does not freeze

• Seawater freezes at a higher temperature

• Seawater freezes at a lower temperature

• Seawater and fresh water freeze at the same temperature

What conclusion can be drawn from the experiment about fresh water?

• Fresh water freezes at a lower temperature

• Fresh water does not freeze

• Fresh water freezes at a higher temperature

• Fresh water and salt water freeze at the same temperature