Julie goes to Silver River each week for 4 weeks and collects 5 samples of water to test the pH

An environmental group contacts Julie to get her procedures so that they can check her results.

A one time explanation of one observation.

Well-proven explanation for a set of observations.

Explanation of WHY things are the way they are.

Proven description of HOW things are, but does not give a reason why.

Can be supported or rejected by a single experiment.

DEVELOPED through scientific inquiry process.

Ms. Umholtz performs an experiment by comparing the number of drops of tap water that can fit on a penny to the number of drops of soapy water that can fit on a penny. She performs three trials. What is the independent variable?

Ms. Umholtz performs an experiment by comparing the number of drops of tap water that can fit on a penny to the number of drops of soapy water that can fit on a penny. She performs three trials. What is the dependent variable?

Ms. Umholtz performs an experiment by comparing the number of drops of tap water that can fit on a penny to the number of drops of soapy water that can fit on a penny. She performs three trials. Is this replication or repetition?

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live. He has created a new sauce that he thinks will reduce the production of body gas associated with eating krabby patties from the Krusty Krab. He recruits 100 customers with a history of gas problems. He has 50 of them (Group A) eat krabby patties with the new sauce. The other 50 (Group B) eat krabby patties with sauce that looks just like new sauce but is really just a mixture of mayonnaise and food coloring. Both groups were told that they were getting the sauce that would reduce gas production.

Which people are in the control group?

SpongeBob notices that his pal Gary is suffering from slimotosis, which occurs when the shell develops a nasty slime and gives off a horrible odor. His friend Patrick tells him that rubbing seaweed on the shell is the perfect cure, while Sandy says that drinking Dr. Kelp will be a better cure. Sponge Bob decides to test this cure by rubbing Gary with seaweed for 1 week and having him drink Dr. Kelp. After a week of treatment, the slime is gone and Gary’s shell smells better.

What is the independent variable?

A good hypothesis is written as If _____________, then __________. What should you put after "if" and "then"?

Molly makes a model of an atom, showing the protons, neutrons, and electrons. What field of science does she work in?

A student makes a physical model of an atom using toothpicks and candy. What is a limitation of this physical model?

 $6CO2+6H2O\ \rightarrow\ C6H12O6+6O2$  The process of photosynthesis, which takes place in green plants, is represented by the model above. What type of model is shown?

Upon completing an investigation, Melissa summarizes the work in a lab report. Which title most likely indicates that the student used a model to prepare the report?

Science is . . . (check all that apply)