Nature of Science PIZZA PIZZA 5th Grade

Jessica is comparing the mass of the animals in her reptile collection. To collect the data needed, Jessica creates an apparatus to hold the reptiles in place so that she may measure their mass using a digital scale. How can Jessica BEST analyze the data she collects to determine which of the reptiles has the greatest mass after conducting her investigation?

• ask for opinions

• form a hypothesis

• reach a conclusion

• graph the measurements

James set up an experiment involving a glass of water and a speaker system. He places the glass of water on the table very close to the speakers. He then turns on the music and gradually increases the volume as he records his observation.

What problem statement is MOST likely being tested?

• How does the strength of the glass affect the sound?

• What volume will cause the water to spill out of the glass?

• What damage do different strengths of vibrations cause human eardrums?

• Which brand of speakers are the best?

Yuri is creating a simulation to show how different seasons on Earth occur. He is searching his house for materials that would be best to model seasons change on Earth.

Which of these materials should he select?

• a flashlight

• a globe

• a map and a flashlight

• a flashlight and a globe

Mr. Tyler often does laboratory activities with his science class. In which of the following problem statements for science laboratory activities does he conduct a true controlled experiment?

• How many days are there in a complete moon Cycle?

• How many pennies does it take to make the boat sink?

• Will a rubber ball bounce higher on a grass or a sidewalk?

• Which brand of bubble gum holds its flavor longest?

Reina loves to work in the garden with her aunt. Each year, they plant a variety of flowers. Reina decided to keep a journal of the flowers they have planted each year. Why would Reina MOST LIKELY keep a journal?

• to prove that her aunt is the best gardner.

• to record the type of flowers that her aubt planted.

• to record data that will help with deide how to care for the flowers so they will thrive.

• to keep a record of which flowers were the prettiest.

Jonathan's mom normally uses Sand's Gasoline. He sees that Greater Gas has a special formulas of gasoline that cleans a car's engine. He predicts that Greater Gas will help his mom's car get more miles per gallon refueling her car. Which part of the scientific method is Jonathan conducting?

• Making a hypothesis

• drawing a conclusion

• creating a problem statement

• analyzing results

The Brady twins are conducting an experiment for their science fair project. After they conducted their experiment they realize that the results were not what they predicted. What should be their next steps in their experiment?

• change their hypothesis

• change the variables until they get the results they want

• ignore the results and change the data

• repeat the experiment to verify their results

Mrs. Martin's class is conducting an experiment with lima beans. They have placed some of the beans in sandwich bags with a wet paper towel. Half of the bags were taped to the window. The other bags were taped on a board and placed in a closet. They recorded results over a period of two weeks.

Which of the following is MOST LIKELY being investigated?

• the strength of sandwich bags

• how light affects plants growth

• which paper towel is most absorbent

• how the amount of water used affects a plant's growth

Davis hypothesis states "If friction occurs between a surface and the wheels on a car, then the speed will be affected". To test this hypothesis, he uses three different cars on three different surfaces. Which of the following is the BEST advice to give Davis about the number of variables that should be changed in his experiment?

• Only one varable should be changed at a time

• Two variables may be changed in each experiment

• Three variabkes may be changed in each experiment

• Theye may be unlimited number of variable in each expriment

Which of the following is LEAST important to an experiment when conducting a scientific investigation?

• recording accurate data

• choosing an original problem statement

• creating a testable hypothesis

• testing one variable at a time