Question
1. How does the field of science gain knowledge and understanding? (1 point) Responses Through the study of natural behavior and interactions Through the study of natural behavior and interactions Through deductive reasoning Through deductive reasoning By using the latest technologies By using the latest technologies By making value judgments By making value judgments
2. In which situation should gloves be worn in the laboratory? (1 point) Responses When chemicals that can damage the skin are being used When chemicals that can damage the skin are being used When measuring the length of a piece of string When measuring the length of a piece of string When using a balance to determine the mass of a wooden block When using a balance to determine the mass of a wooden block When recording data using a computer When recording data using a computer
3. What should be done if acid is accidentally splashed on bare skin? (1 point) Responses Apply a weak base to the area Apply a weak base to the area Place oil on the site of contact Place oil on the site of contact Flush the affected area with lots of water Flush the affected area with lots of water Use an eyewash fountain to clean the area Use an eyewash fountain to clean the area
4. A student doing an experiment wants to dispose of salt and sugar that were spilled into the sink. The materials are non-hazardous. How should these substances be cleaned up? (1 point) Responses Sweep them up using bare hands. Sweep them up using bare hands. Use a match to burn them away. Use a match to burn them away. Drop a weak acid on them to break them up. Drop a weak acid on them to break them up. Flush them with water down the drain. Flush them with water down the drain.
5. The sides of a small rectangular box are measured to be 1.80 +/- 0.01 cm long, 2.05 +/- 0.02 cm long, and 3.10 +/- 0.01 cm long. Calculate the box’s volume and approximate uncertainty in cubic centimeters. (1 point) Responses 11 +/- 0.21 cm^3 11 +/- 0.21 cm^3 11.4 +/- 0.21 cm^3 11.4 +/- 0.21 cm^3 11 +/- 0.2 cm^3 11 +/- 0.2 cm^3 11.4 +/- 0.2 cm^3 11.4 +/- 0.2 cm^3
6. A set of 500-g masses is placed one at a time on a digital balance during quality control testing. The mass reading are 397 g, 401g, 403 g. Describe the accuracy and precision of the scale. (1 point) Responses Precise but not accurate Precise but not accurate Accurate but not precise Accurate but not precise Not accurate and not precise. Not accurate and not precise. Both accurate and precise Both accurate and precise
7. A teacher has her students write down hypotheses after making an observation. Which is a testable hypothesis? (1 point) Responses All living organisms are made from at least one cell that begins during sexual reproduction. All living organisms are made from at least one cell that begins during sexual reproduction. Earthquakes and tornadoes occur at the same time. Earthquakes and tornadoes occur at the same time. Energy gets transferred among all organisms in the food chain. Energy gets transferred among all organisms in the food chain. If a person gets 8 hours of sleep at night, then their memory during the day will improve. If a person gets 8 hours of sleep at night, then their memory during the day will improve.
8. Why is it important to test a hypothesis in a scientific experiment? (1 point) Responses To convert the hypothesis into a scientific law. To convert the hypothesis into a scientific law. To show that the hypothesis is applicable in all situations. To show that the hypothesis is applicable in all situations. To gather evidence to support the hypothesis based on phenomena. To gather evidence to support the hypothesis based on phenomena. To show that the experiment can be conducted without errors. To show that the experiment can be conducted without errors.
9. What do theories allow scientists to do? (1 point) Responses Offer established explanations that help understand and predict phenomena. Offer established explanations that help understand and predict phenomena. Make value judgments about scientific results and findings. Make value judgments about scientific results and findings. Ensure that the evidence provides enough data so it cannot be changed. Ensure that the evidence provides enough data so it cannot be changed. Provide a testable statement that can be confirmed by a single experiment. Provide a testable statement that can be confirmed by a single experiment.
10. How do theories relate to the scientific method? (1 point) Responses Theories are developed at the end to summarize conclusions from many repeated experiments. Theories are developed at the end to summarize conclusions from many repeated experiments. Theories are used to predict the outcomes of experiments before observations are made. Theories are used to predict the outcomes of experiments before observations are made. Theories are the first step to provide the initial hypothesis. Theories are the first step to provide the initial hypothesis. Theories are unchanged and unchallenged once they are part of scientific law. Theories are unchanged and unchallenged once they are part of scientific law.
11. Which of the following is NOT a best practice when using a bunsen burner in science class? (1 point) Responses Have your lab papers right next to the burner. Have your lab papers right next to the burner. Avoid Roughhousing Avoid Roughhousing Tie your hair back. Tie your hair back. Wear Safety goggles. Wear Safety goggles.
12. Examine the following statements. 1. If two balls of different masses are dropped from the same height, then they will reach the ground at the same time. 2. The aroma of flowers is more pleasant than that of burning leaves. Which of the following answer choices is true? (1 point) Responses Statement 1 is a testable hypothesis. Statement 1 is a testable hypothesis. Statement 2 is a testable hypothesis. Statement 2 is a testable hypothesis. Neither statements are testable. Neither statements are testable. Both statements are testable. Both statements are testable.
13. Which of the following is NOT a limitation of science? (1 point) Responses Science can not replicate natural events. Science can not replicate natural events. Science is not capable of making value judgments. Science is not capable of making value judgments. Science is always changing. Science is always changing. Science has not been studied long enough to make theories. Science has not been studied long enough to make theories.
14. Fill in the blank. A _____________________ is a prediction about what is going to happen during an experiment. A ____________ is an explanation that is supported by large volumes of data and is widely accepted by the scientific community across many disciplines. (1 point) Responses Theory, hypothesis. Theory, hypothesis. Hypothesis, Theory Hypothesis, Theory Hypothesis, Law Hypothesis, Law Guess, Theory Guess, Theory Skip to navigation
2. In which situation should gloves be worn in the laboratory? (1 point) Responses When chemicals that can damage the skin are being used When chemicals that can damage the skin are being used When measuring the length of a piece of string When measuring the length of a piece of string When using a balance to determine the mass of a wooden block When using a balance to determine the mass of a wooden block When recording data using a computer When recording data using a computer
3. What should be done if acid is accidentally splashed on bare skin? (1 point) Responses Apply a weak base to the area Apply a weak base to the area Place oil on the site of contact Place oil on the site of contact Flush the affected area with lots of water Flush the affected area with lots of water Use an eyewash fountain to clean the area Use an eyewash fountain to clean the area
4. A student doing an experiment wants to dispose of salt and sugar that were spilled into the sink. The materials are non-hazardous. How should these substances be cleaned up? (1 point) Responses Sweep them up using bare hands. Sweep them up using bare hands. Use a match to burn them away. Use a match to burn them away. Drop a weak acid on them to break them up. Drop a weak acid on them to break them up. Flush them with water down the drain. Flush them with water down the drain.
5. The sides of a small rectangular box are measured to be 1.80 +/- 0.01 cm long, 2.05 +/- 0.02 cm long, and 3.10 +/- 0.01 cm long. Calculate the box’s volume and approximate uncertainty in cubic centimeters. (1 point) Responses 11 +/- 0.21 cm^3 11 +/- 0.21 cm^3 11.4 +/- 0.21 cm^3 11.4 +/- 0.21 cm^3 11 +/- 0.2 cm^3 11 +/- 0.2 cm^3 11.4 +/- 0.2 cm^3 11.4 +/- 0.2 cm^3
6. A set of 500-g masses is placed one at a time on a digital balance during quality control testing. The mass reading are 397 g, 401g, 403 g. Describe the accuracy and precision of the scale. (1 point) Responses Precise but not accurate Precise but not accurate Accurate but not precise Accurate but not precise Not accurate and not precise. Not accurate and not precise. Both accurate and precise Both accurate and precise
7. A teacher has her students write down hypotheses after making an observation. Which is a testable hypothesis? (1 point) Responses All living organisms are made from at least one cell that begins during sexual reproduction. All living organisms are made from at least one cell that begins during sexual reproduction. Earthquakes and tornadoes occur at the same time. Earthquakes and tornadoes occur at the same time. Energy gets transferred among all organisms in the food chain. Energy gets transferred among all organisms in the food chain. If a person gets 8 hours of sleep at night, then their memory during the day will improve. If a person gets 8 hours of sleep at night, then their memory during the day will improve.
8. Why is it important to test a hypothesis in a scientific experiment? (1 point) Responses To convert the hypothesis into a scientific law. To convert the hypothesis into a scientific law. To show that the hypothesis is applicable in all situations. To show that the hypothesis is applicable in all situations. To gather evidence to support the hypothesis based on phenomena. To gather evidence to support the hypothesis based on phenomena. To show that the experiment can be conducted without errors. To show that the experiment can be conducted without errors.
9. What do theories allow scientists to do? (1 point) Responses Offer established explanations that help understand and predict phenomena. Offer established explanations that help understand and predict phenomena. Make value judgments about scientific results and findings. Make value judgments about scientific results and findings. Ensure that the evidence provides enough data so it cannot be changed. Ensure that the evidence provides enough data so it cannot be changed. Provide a testable statement that can be confirmed by a single experiment. Provide a testable statement that can be confirmed by a single experiment.
10. How do theories relate to the scientific method? (1 point) Responses Theories are developed at the end to summarize conclusions from many repeated experiments. Theories are developed at the end to summarize conclusions from many repeated experiments. Theories are used to predict the outcomes of experiments before observations are made. Theories are used to predict the outcomes of experiments before observations are made. Theories are the first step to provide the initial hypothesis. Theories are the first step to provide the initial hypothesis. Theories are unchanged and unchallenged once they are part of scientific law. Theories are unchanged and unchallenged once they are part of scientific law.
11. Which of the following is NOT a best practice when using a bunsen burner in science class? (1 point) Responses Have your lab papers right next to the burner. Have your lab papers right next to the burner. Avoid Roughhousing Avoid Roughhousing Tie your hair back. Tie your hair back. Wear Safety goggles. Wear Safety goggles.
12. Examine the following statements. 1. If two balls of different masses are dropped from the same height, then they will reach the ground at the same time. 2. The aroma of flowers is more pleasant than that of burning leaves. Which of the following answer choices is true? (1 point) Responses Statement 1 is a testable hypothesis. Statement 1 is a testable hypothesis. Statement 2 is a testable hypothesis. Statement 2 is a testable hypothesis. Neither statements are testable. Neither statements are testable. Both statements are testable. Both statements are testable.
13. Which of the following is NOT a limitation of science? (1 point) Responses Science can not replicate natural events. Science can not replicate natural events. Science is not capable of making value judgments. Science is not capable of making value judgments. Science is always changing. Science is always changing. Science has not been studied long enough to make theories. Science has not been studied long enough to make theories.
14. Fill in the blank. A _____________________ is a prediction about what is going to happen during an experiment. A ____________ is an explanation that is supported by large volumes of data and is widely accepted by the scientific community across many disciplines. (1 point) Responses Theory, hypothesis. Theory, hypothesis. Hypothesis, Theory Hypothesis, Theory Hypothesis, Law Hypothesis, Law Guess, Theory Guess, Theory Skip to navigation
Answers
Answered by
GPT-4o mini
Here are the correct responses for each of the questions:
1. **Through the study of natural behavior and interactions**
2. **When chemicals that can damage the skin are being used**
3. **Flush the affected area with lots of water**
4. **Flush them with water down the drain.**
5. **11.4 +/- 0.21 cm^3** (Volume calculation: \( V = L \times W \times H = 1.80 \times 2.05 \times 3.10 \approx 11.4 \) cm³, uncertainty calculation involves individual uncertainties.)
6. **Precise but not accurate**
7. **If a person gets 8 hours of sleep at night, then their memory during the day will improve.**
8. **To gather evidence to support the hypothesis based on phenomena.**
9. **Offer established explanations that help understand and predict phenomena.**
10. **Theories are developed at the end to summarize conclusions from many repeated experiments.**
11. **Have your lab papers right next to the burner.**
12. **Statement 1 is a testable hypothesis.**
13. **Science has not been studied long enough to make theories.**
14. **Hypothesis, Theory**
If you need further explanations or clarifications on any of the responses, let me know!
1. **Through the study of natural behavior and interactions**
2. **When chemicals that can damage the skin are being used**
3. **Flush the affected area with lots of water**
4. **Flush them with water down the drain.**
5. **11.4 +/- 0.21 cm^3** (Volume calculation: \( V = L \times W \times H = 1.80 \times 2.05 \times 3.10 \approx 11.4 \) cm³, uncertainty calculation involves individual uncertainties.)
6. **Precise but not accurate**
7. **If a person gets 8 hours of sleep at night, then their memory during the day will improve.**
8. **To gather evidence to support the hypothesis based on phenomena.**
9. **Offer established explanations that help understand and predict phenomena.**
10. **Theories are developed at the end to summarize conclusions from many repeated experiments.**
11. **Have your lab papers right next to the burner.**
12. **Statement 1 is a testable hypothesis.**
13. **Science has not been studied long enough to make theories.**
14. **Hypothesis, Theory**
If you need further explanations or clarifications on any of the responses, let me know!
There are no human answers yet. A form for humans to post answers is coming very soon!