Choose the correct answer
Senario A: In order to discover which type of rock, igneous, sedimentary, or metamorphic is most likely to be damaged by freezing, a group of students wants to design an experiment. They choose three similar size rocks, one from each group. They place each rock in a 12 ounce container filled with water. The containers were put in the freezer for 24 hours. The containers are removed from the freezer. Observations were made throughout the thawing process. In the end cracks in the rocks are counted and measured. What is the manipulated variable?
- time
- cracks in the rocks
- types of rocks
- water
Senario B: In order to discover which type of rock, igneous, sedimentary, or metamorphic is most likely to be damaged by freezing, a group of students wants to design an experiment. They choose three similar size rocks, one from each group. They place each rock in a 12 ounce container filled with water. The containers are put in the freezer for 24 hours. The containers are removed from the freezer. Observations were made throughout the thawing process. In the end cracks in the rocks are counted and measured.
What are the controlled variables? (there are two correct answers)
Senario C:In order to discover which type of rock, igneous, sedimentary, or metamorphic is most likely to be damaged by freezing, a group of students wants to design an experiment. They choose three similar size rock, one from each group. They place each rock in a 12 oz container filled with water. The containers are put in the freezer for 24 hours. The containers are removed from the freezer. Observations were made throughout the thawing process. In the end cracks in the rocks are counted and measured. What is the responding variable?
Scenario D: 5th grade students are planning their end of the year party which will take place in the school’s garden area. It will be hot in June, so they want to know if different color cups will keep their drinks cooler. They design an experiment with 4 colors of solo cups. The cups are filled with 6 ounces of water and placed in the sunlight in the garden. The students measure the temperature in each cup in 20 minute intervals for 2 hours.
What is the independent variable?
Scenario E: 5th grade students are planning their end of the year party which will take place in the school’s garden area. It will be hot in June, so they want to know if different color cups will keep their drinks cooler. They design an experiment with 4 colors of solo cups. The cups are filled with 6 ounces of water and placed in the sunlight in the garden. The students measure the temperature in each cup in 20 minute intervals for 2 hours.
What are the control variables? (there are two again this time)
Scenario F: 5th grade students are planning their end of the year party which will take place in the school’s garden area. It will be hot in June, so they want to know if different color cups will keep their drinks cooler. They design an experiment with 4 colors of solo cups. The cups are filled with 6 ounces of water and placed in the sunlight in the garden. The students measure the temperature in each cup in 20 minute intervals for 2 hours.
What is the dependent variable?
