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Unit 1 review: Scientific method, Measurement, metric conversion

Total questions: 22

Worksheet time: 18mins

Name
Class
Date
1.

1. Jo Ann bought a table from the local thrift store. She is not sure if it will fit in her truck bed. Which S.I. unit would be used to measure the length of this table and her truck bed?

a)

Meters

b)

Celcius

c)

Seconds

d)

Liters

2.

2. Darius needs to perform an experiment that requires water to be a 5 different temperatures. Which S.I. unit would be used to take the temperatures of the water containing beakers?

a)

Seconds

b)

Celcius

c)

Liters

d)

Meters

3.

3. Crystal just bought the book Hunger Games series. She was thinking to herself that those books were very heavy as she lugged them home. Which S.I. unit would be used to measure the mass of her books?

a)

Meters

b)

Celcius

c)

Grams

d)

Liters

4.

4. Noah's little brother had a blue plastic swimming pool. Noah was curious as to how much water the pool could hold. Which S.I. unit would be used to measure the quantity of water in the pool?

a)

Liters

b)

Gram

c)

Meters

d)

Celcius

5.

How long is the pencil?

a)

7.5 cm

b)

8.0 cm

c)

8.5 cm

d)

9.0 mm

6.

What is the volume of liquid in the graduated cylinder?

a)

65 mL

b)

66 mL

c)

67 mL

d)

68 mL

7.

Like most students, Megan really enjoyed doing labs in science class. One day her teacher allowed the class to design their own experiment. Megan was excited and couldn't wait to get started. Her task was to see if she could inflate a balloon using chemicals. Megan knew that baking soda and vinegar would fizz and produce a gas. However, her teacher didn't give her any vinegar to use, only dilute Hydrochloric Acid (HCI). Megan thought she could use the HCl in place of the vinegar, and wanted to see if mixing them would cause the balloon to inflate. She asked her teacher if that would be OK and he agreed. Megan got on her safety gloves and protective goggles. She put HCl in an Erlenmeyer flask and baking soda inside the balloon. She then stretched the opening of the balloon over the top of the flask and held the balloon to the side so the baking soda didn't spill out. Megan then lifted the balloon and the two chemicals mixed as the baking soda fell into the flask. Megan was all smiles when she saw the balloon inflating. It worked just like she had expected. In Meghan's anxious desire to perform the experiment, she forgot to do which of the following:

a)

Get teacher approval before beginning the experiment.

b)

Gather the appropriate materials to conduct the experiment.

c)

Write a Hypothesis in If...then form before the experiment.

d)

All is correct

8.

8. Like most students, Megan really enjoyed doing labs in science class. One day her teacher allowed the class to design their own experiment. Megan was excited and couldn't wait to get started. Her task was to see if she could inflate a balloon using chemicals. Megan knew that baking soda and vinegar would fizz and produce a gas. However, her teacher didn't give her any vinegar to use, only dilute Hydrochloric Acid (HCI). Megan thought she could use the HCl in place of the vinegar, and wanted to see if mixing them would cause the balloon to inflate. She asked her teacher if that would be OK and he agreed. Megan got on her safety gloves and protective goggles. She put HCl in an Erlenmeyer flask and baking soda inside the balloon. She then stretched the opening of the balloon over the top of the flask and held the balloon to the side so the baking soda didn't spill out. Megan then lifted the balloon and the two chemicals mixed as the baking soda fell into the flask. Megan was all smiles when she saw the balloon inflating. It worked just like she had expected. Which hypothesis would be BEST supported by the experiment and outcome?

a)

If I add baking soda to the acid, then nothing will happen and the balloon will not inflate.

b)

If I add baking soda to the acid, then the liquid will boil and the balloon will melt.

c)

If I add baking soda to the acid, then a fire will occur and burn the balloon.

d)

If I add baking soda to the acid, then a gas will form and inflate the balloon.

9.

Scientists working in laboratories make discoveries based upon observations of their experiments every day. What are the two types of observations that scientists routinely making while performing experiments?

a)

Quantitative and Qualitative

b)

Predictions and Inferences

c)

Predictions and Quantitative

d)

Predictions and Qualitative

10.

You will be performing several labs over the course of the class. There are rules you must remember at all times, not only for your safety, but everyone else's. Which of the following is not one of the rules of lab safety?

a)

Never do anything without first getting permission from your teacher.

b)

You may eat in the lab.

c)

Make sure your lab area is clean when you are done.

d)

Do not horseplay in the lab.

11.

Convert: 1 kg = ______________ g

a)

100

b)

1000

c)

.01

d)

.001

12.

Convert: 7 decaliters = ________________ L

a)

7000

b)

.07

c)

700

d)

70

13.

Convert: 250 g = __________________kg

a)

.025

b)

250

c)

.25

d)

25

14.

Convert: 5 m = ___________mm

a)

500

b)

5000

c)

50

d)

.005

15.

Convert: 25 hectograms (2 hg) = _____________kg

a)

2500

b)

2.5

c)

250

d)

.025

16.

Convert: 2 km = ______________ mm

a)

2,000,000

b)

2,000

c)

200

d)

20

17.

Read the experiment and then answer the following questions. A student investigated the effect of radiation on the germination(growth) of bean seeds.  He thought that exposure to radiation would hurt the seeds ability to germinate (grow) much like ultra-violet light causing skin cancer.  Three hundred seeds were soaked in distilled water for one hour.  They were then divided into three groups.  One group was placed in a microwave oven on high for three seconds.  Another group was microwaved on high for six seconds.  The last group was not microwaved. The seeds were then planted in three separate containers and given the same amount of water.  The containers were placed in a location with a constant temperature of approximately 27 degrees Celsius.  Each day for two weeks the number of seeds that germinated in each group was recorded.                                Total Number of Bean Seeds Germinated after Microwave RadiationThree Seconds of Radiation                   Six Seconds of Radiation                       No Radiation             54   seeds                      26 seeds                                 88 seeds

Based on the text above, what was the student's original question?

a)

Will different types of beans grow faster than each other?

b)

Will radiation harm a bean's ability to grow

c)

Will the type of soil beans are planted in effect their growth?

18.

Read the experiment and then answer the following questions. A student investigated the effect of radiation on the germination(growth) of bean seeds.  He thought that exposure to radiation would hurt the seeds ability to germinate (grow) much like ultra-violet light causing skin cancer.  Three hundred seeds were soaked in distilled water for one hour.  They were then divided into three groups.  One group was placed in a microwave oven on high for three seconds.  Another group was microwaved on high for six seconds.  The last group was not microwaved. The seeds were then planted in three separate containers and given the same amount of water.  The containers were placed in a location with a constant temperature of approximately 27 degrees Celsius.  Each day for two weeks the number of seeds that germinated in each group was recorded.                                Total Number of Bean Seeds Germinated after Microwave RadiationThree Seconds of Radiation                   Six Seconds of Radiation                       No Radiation             54   seeds                      26 seeds                                 88 seeds

Based on the text above, what was the student's Hypothesis? (Remember to write it in If......then.....format.)

a)

If I change the power of the microwave I use on the seeds, the group I microwave with the highest power will grow best.

b)

If I put all the plants in the same pot, then one of them will grow faster.

c)

If I change the amount of time I microwave the seeds, some of them will not grow as well as the others.

19.

Read the experiment and then answer the following questions. A student investigated the effect of radiation on the germination(growth) of bean seeds.  He thought that exposure to radiation would hurt the seeds ability to germinate (grow) much like ultra-violet light causing skin cancer.  Three hundred seeds were soaked in distilled water for one hour.  They were then divided into three groups.  One group was placed in a microwave oven on high for three seconds.  Another group was microwaved on high for six seconds.  The last group was not microwaved. The seeds were then planted in three separate containers and given the same amount of water.  The containers were placed in a location with a constant temperature of approximately 27 degrees Celsius.  Each day for two weeks the number of seeds that germinated in each group was recorded.                                Total Number of Bean Seeds Germinated after Microwave RadiationThree Seconds of Radiation                   Six Seconds of Radiation                       No Radiation             54   seeds                      26 seeds                                 88 seeds

Based on the text above, identify the control group.

a)

seeds with 3 seconds of radiation

b)

seeds with 6 seconds of radiation

c)

seeds with no radiation

20.

Read the experiment and then answer the following questions. A student investigated the effect of radiation on the germination(growth) of bean seeds.  He thought that exposure to radiation would hurt the seeds ability to germinate (grow) much like ultra-violet light causing skin cancer.  Three hundred seeds were soaked in distilled water for one hour.  They were then divided into three groups.  One group was placed in a microwave oven on high for three seconds.  Another group was microwaved on high for six seconds.  The last group was not microwaved. The seeds were then planted in three separate containers and given the same amount of water.  The containers were placed in a location with a constant temperature of approximately 27 degrees Celsius.  Each day for two weeks the number of seeds that germinated in each group was recorded.                                Total Number of Bean Seeds Germinated after Microwave RadiationThree Seconds of Radiation                   Six Seconds of Radiation                       No Radiation             54   seeds                      26 seeds                                 88 seeds

Based on the text above, identify the constants.

a)

The amount of radiation

b)

The number of seeds that germinated (grew)

c)

The soil

21.

Read the experiment and then answer the following questions. A student investigated the effect of radiation on the germination(growth) of bean seeds.  He thought that exposure to radiation would hurt the seeds ability to germinate (grow) much like ultra-violet light causing skin cancer.  Three hundred seeds were soaked in distilled water for one hour.  They were then divided into three groups.  One group was placed in a microwave oven on high for three seconds.  Another group was microwaved on high for six seconds.  The last group was not microwaved. The seeds were then planted in three separate containers and given the same amount of water.  The containers were placed in a location with a constant temperature of approximately 27 degrees Celsius.  Each day for two weeks the number of seeds that germinated in each group was recorded.                                Total Number of Bean Seeds Germinated after Microwave RadiationThree Seconds of Radiation                   Six Seconds of Radiation                       No Radiation             54   seeds                      26 seeds                                 88 seeds

Based on the text above, what is the independent variable?

a)

The number of seeds that germinated (grew)

b)

The amount of radiation

c)

The amount of water

22.

Read the experiment and then answer the following questions. A student investigated the effect of radiation on the germination(growth) of bean seeds.  He thought that exposure to radiation would hurt the seeds ability to germinate (grow) much like ultra-violet light causing skin cancer.  Three hundred seeds were soaked in distilled water for one hour.  They were then divided into three groups.  One group was placed in a microwave oven on high for three seconds.  Another group was microwaved on high for six seconds.  The last group was not microwaved. The seeds were then planted in three separate containers and given the same amount of water.  The containers were placed in a location with a constant temperature of approximately 27 degrees Celsius.  Each day for two weeks the number of seeds that germinated in each group was recorded.                                Total Number of Bean Seeds Germinated after Microwave RadiationThree Seconds of Radiation                   Six Seconds of Radiation                       No Radiation             54   seeds                      26 seeds                                 88 seeds

Based on the text above, what is the dependent variable?

a)

The number of seeds that germinated (grew)

b)

The amount of radiation

c)

The amount of water