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Steps of The Sci Method
Identify the variable
Vocabulary
King Henry
Density
100
Each sentence below describes a step of the scientific method. Match each sentence with a step of the scientific method listed below: 1. ____ Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted. A. Recognize a problem B. Form a Hypothesis C. test the hypothesis with an experiment D. Draw a conclusion
Hypothesis
100
A fish farmer wanted to determine if a new type of fish food would help his fish to grow faster and larger. He believed that his old fish food was better than the new fish food he was asked to try. He divided up his fish into two equal groups. Each group of fish were fed at the same time, contained the same number of fish, and were kept at the same temperature. Group A fish were fed the new fish food and group B fish were fed the old food. After one month the fish farmer measured each group of fish. He found that the fish fed the old fish food were on the average two pounds larger than the fish fed with the new food. What is the experimental group in this experiment?
Group A
100
Length X Width X Height
volume
100
70 cm _____ mm
700
100
What is the density of carbon dioxide gas if 0.196 grams occupies a volume of 100mL?
.00196 g/ml
200
Each sentence below describes a step of the scientific method. Match each sentence with a step of the scientific method listed below: 2. ____ Susan’s data showed that household cockroaches moved away from raw cucumber slices. A. Recognize a problem B. Form a Hypothesis C. test the hypothesis with an experiment D. Draw a conclusion
D. Draw a conclusion
200
A fish farmer wanted to determine if a new type of fish food would help his fish to grow faster and larger. He believed that his old fish food was better than the new fish food he was asked to try. He divided up his fish into two equal groups. Each group of fish were fed at the same time, contained the same number of fish, and were kept at the same temperature. Group A fish were fed the new fish food and group B fish were fed the old food. After one month the fish farmer measured each group of fish. He found that the fish fed the old fish food were on the average two pounds larger than the fish fed with the new food. What is the control group in this experiment?
Group B
200
Mass per unit volume
Density
200
2Kg = __________g
2000
200
An irregularly shaped stone was lowered into a graduated cylinder holding a volume of water equal to 2.0 mL. The height of the water rose to 7.0 mL. If the mass of the stone was 25 g, what was its density?
5 g/ml
300
Each sentence below describes a step of the scientific method. Match each sentence with a step of the scientific method listed below: 3. ____Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed. A. Recognize a problem B. Form a Hypothesis C. test the hypothesis with an experiment D. Draw a conclusion
C. Test the hypothesis with an experiment
300
A fish farmer wanted to determine if a new type of fish food would help his fish to grow faster and larger. He believed that his old fish food was better than the new fish food he was asked to try. He divided up his fish into two equal groups. Each group of fish were fed at the same time, contained the same number of fish, and were kept at the same temperature. Group A fish were fed the new fish food and group B fish were fed the old food. After one month the fish farmer measured each group of fish. He found that the fish fed the old fish food were on the average two pounds larger than the fish fed with the new food. What is one constant in this experiment?
fish fed at same time # of fish in each group temperature of water
300
A test of a hypothesis
experiment
300
3DAG (dekagrams) = ___________ g
300
300
Keisha observes goldfish in an outdoor pond. The goldfish seem to be more active when the weather is warm than when it is cold. She asks herself, “How do temperature changes affect goldfish?” 7. If she were to do an experiment, which of the following would be the best hypothesis to test? a) Do goldfish like warm or cold water? b) If Goldfish are placed in warm water then they will be more active than if placed in cold water. c) Goldfish live in both warm and cold water. d) Temperature changes kill goldfish
B
400
Each sentence below describes a step of the scientific method. Match each sentence with a step of the scientific method listed below: 4. ___ Rene grew bacteria from the mouth on special plates in the lab. She placed drops of different mouthwash on the bacteria on each plate. A. Recognize a problem B. Form a Hypothesis C. test the hypothesis with an experiment D. Draw a conclusion
C. Test the hypothesis with an experiment
400
A fish farmer wanted to determine if a new type of fish food would help his fish to grow faster and larger. He believed that his old fish food was better than the new fish food he was asked to try. He divided up his fish into two equal groups. Each group of fish were fed at the same time, contained the same number of fish, and were kept at the same temperature. Group A fish were fed the new fish food and group B fish were fed the old food. After one month the fish farmer measured each group of fish. He found that the fish fed the old fish food were on the average two pounds larger than the fish fed with the new food. What is the independent variable in this experiment?
new fish food
400
Anything that has mass and takes up space
matter
400
Is 60 cm bigger, smaller or equal to 600mm
equal
400
9. Which of the following phrases contains quantitative data? a) Green leaves surround white flowers b) Rick’s football jersey is number 85 c) Seeds sprout more quickly when warm d) water evaporates at a rate of 2mL per min
D
500
Each sentence below describes a step of the scientific method. Match each sentence with a step of the scientific method listed below: 10. ___ Bob read about acid rain and wondered how it affects small animals such as crayfish that live in ponds and lakes. A. Recognize a problem B. Form a Hypothesis C. test the hypothesis with an experiment D. Draw a conclusion
Recognize a problem
500
A fish farmer wanted to determine if a new type of fish food would help his fish to grow faster and larger. He believed that his old fish food was better than the new fish food he was asked to try. He divided up his fish into two equal groups. Each group of fish were fed at the same time, contained the same number of fish, and were kept at the same temperature. Group A fish were fed the new fish food and group B fish were fed the old food. After one month the fish farmer measured each group of fish. He found that the fish fed the old fish food were on the average two pounds larger than the fish fed with the new food. What is the dependent variable in this experiment?
How much the fish grew
500
Used to measure the volume of a liquid
Graduated Cylinder
500
If a wooden block is 2cm X 5 cm X 10 cm. What is its volume in mm?
1000cm
500
1. The density of silver is 10.5 g/cm3. Find the mass of silver that takes up 965 cm3 of space.
10132.5 g