Weekly HW- Scientific Method PRACTICE

Sequence the steps of the scientific method from start (top) to finish (bottom).

a

b

c

d

e

f

g

Conclusion

Experiment

Observation

Analyze Data

Share Results

Ask Questions

Hypothesis

Tags

NGSS.MS-PS2-5

Match each example to the step of the scientific method that it represents.

• Hypothesis

• Wonders what type of cookie people like most

• Observation

• Sees cookies in a grocery store

• Experiment

• 25 people do a survey on favorite cookies

• Ask Questions

• Predicts that people like Oreos best

• Conclusion

• Results show people like chocolate chip best

Categorize each item as either quantitative data or qualitative data.

Groups:

(a) Qualitative Data

,

(b) Quantitative Data

• The grass is green.

• The cupcake has 250 calories.

• It feels hot out today.

• Cupcakes are sweet.

• The high temperature is 98.

• The grass is 5 inches tall.

Based on the graph, the day of the week is the​

​ (a)   variable, and the number of boxes is the ​ (b)   variable.

• independent
• dependent
• control/constant

Based on the graph, the time of day is the​

​ (a)   variable, and the temperature is the ​ (b)   variable.

• independent
• dependent
• control/constant

Andrew wants to test out how many hours of direct sunlight are best for growing tomato plants. He hypothesizes that if the plants are given more sunlight, then they will have a higher growth rate. Andrew plants the same brand of seed in the same soil in pots that are all the same size. Each growing tomato plant is given the same amount of water. Tomato plant A gets zero hours of direct sunlight a day, tomato plant B gets 2 hours of direct sunlight a day, tomato plant C gets 4 hours of direct sunlight a day, and tomato plant D gets 6 hours of direct sunlight a day.

Which TWO of the following best describe the amount of sunlight each plant gets? (pick 2 answers)

• The amount of sunlight is the independent variable.

• The amount of sunlight is the dependent variable.

• The amount of sunlight is a control variable.

• The amount of sunlight is changed.

• The amount of sunlight remains the same.

Tags

NGSS.MS-ETS1-1

Andrew wants to test out how many hours of direct sunlight are best for growing tomato plants. He hypothesizes that if the plants are given more sunlight, then they will have a higher growth rate. Andrew plants the same brand of seed in the same soil in pots that are all the same size. Each growing tomato plant is given the same amount of water. Tomato plant A gets zero hours of direct sunlight a day, tomato plant B gets 2 hours of direct sunlight a day, tomato plant C gets 4 hours of direct sunlight a day, and tomato plant D gets 6 hours of direct sunlight a day.

Which TWO of the following best describe the seed brand, soil, pots, and water? (pick 2 answers)

• The are independent variables.

• They are dependent variables.

• They are control variables.

• These variables remain the same.

• These variables are changed.

Tags

NGSS.MS-ETS1-1

Andrew wants to test out how many hours of direct sunlight are best for growing tomato plants. He hypothesizes that if the plants are given more sunlight, then they will have a higher growth rate. Andrew plants the same brand of seed in the same soil in pots that are all the same size. Each growing tomato plant is given the same amount of water. Tomato plant A gets zero hours of direct sunlight a day, tomato plant B gets 2 hours of direct sunlight a day, tomato plant C gets 4 hours of direct sunlight a day, and tomato plant D gets 6 hours of direct sunlight a day.

Which of the following is the dependent variable?

• Water

• Sunlight

• Plant Growth

• Soil

• Pot Size

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Look at the graph. Which statement is true about the graph?

• The amount of rainfall is the independent variable, and the number of frogs is the dependent variable.

• The amount of rainfall is the dependent variable, and the number of frogs is the independent variable.

• The amount of rainfall and number of frogs are both control variables.

• If there is more rainfall, then there will likely be less frogs in the pond.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Look at the data table. Which statement is true about the data table?

• Soil temperature is the dependent variable, and germination rate is the independent variable.

• Soil temperature and germination rate are both control variables.

• Soil temperature is the independent variable, and germination rate is the dependent variable.

• A cooler soil temperature results in the highest germination rate.

Tags

NGSS.MS-LS2-1