Scientific Investigations

What is the Aim of an experiment?

• A statement that describes what the investigation is trying to find out

• A statement that tells you the results of the experiment

• A statement showing how you did the experiment

• A statement describing your observations throughout the experiment

What is a Variable?

• Variations within the experiment

• The repeating of the experiment by classmates

• Anything that can change during an experiment

• Something that must be keep the same during an experiment

The dependant variable

• Is the thing you measure

• Depends on the people/place doing the experiment

• Must not change during the experiment

• Is the thing you change on purpose

The control group

• The parts of the experiment you keep the same

• The only group you collect data from

• The group you change on purpose

• Does not have the independent variable and is used for comparison

When making an observation, you must use...

• Only Sight

• Smell & Touch

• ALL 5 Senses

• Only Taste

This step of the scientific method is an educated guess or a prediction.

• Hypothesis

• Research

• Observation

• Conclusion

the factor that is changed by the scientist in a science experiment.

• dependent variable

• independent variable

• constant

• hypothesis

the factor that is measured in the science experiment.

• constant

• independent variable

• hypothesis

• dependent variable

Counting the number of barnacles on a boat would be what type of data?

• qualitative

• quantitative

• quick

• quiver

Describing the barnacles on a boat would be what type of data?

• qualitative

• quantitative