Tools
Definitions
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100
1.Blaine wants to measure the mass of a rock sample. Which tool should he use? a. balance b. measuring cup c. spring scale d. tape measure
Balance
100
What is an investigation?
What is an investigation? An investigation is a procedure that is carried out to gather data about an object or event.
100
What is a variable?
What is a variable? Identify and control the factors that can affect the outcome of an experiment.
100
12. Which is an example of an inquiry about dogs? a. Carla teaches her dog a new trick. b. Martha goes to the library and reads a funny story about a dog. c. Judith gives her dog two different foods at once and observes what it does. d. Trish goes to the animal shelter to ask what dogs are available to adopt.
d. Trish goes to the animal shelter to ask what dogs are available to adopt.
200
2. Which science tool does not measure anything? a. balance b. dropper c. forceps d. thermometer
Forceps
200
What is inquiry?
What is inquiry? Inquiry is an organized way to gather information and answer questions.
200
What is an experiment?
a procedure you carry out under controlled conditions to test a hypothesis.
200
13. A paved road runs past one side of Jackson’s house, and a dirt road runs past the other side. Many people ride bicycles past his house. Jackson notices that the bicycles on the dirt road have wide tires, and the bicycles on the paved road have narrow tires. Jackson thinks that wide tires must be easier to use on the dirt road. What process did Jackson use to figure this out? a. classify b. communicate c. infer d. measure
c. infer
200
20. Which is usually the first step in the scientific method? a. conduct an experiment b. form a hypothesis c. observe and ask questions d. communicate results
c. observe and ask questions
300
3. Which tool led to the discovery of bacteria and other tiny things living in water? a. forceps b. microscope c. thermometer d. spring scale
microscope
300
What is classify?
What is classify? Classify- group or organize objects or events into categories based on specific characteristics.
300
What is the scientific method?
What is the scientific method? a series of steps a scientist uses to test a hypothesis.
300
If a student comes into our room while we are doing an experiment and is eating cookies and running. What would you tell them to do ?
Throw food away, and stop running!
400
4. Which measurement tool would give different results on the International Space Station than on Earth, even when measuring the same object? a. ruler b. spring scale c. tape measure d. thermometer
b. spring scale
400
What is infer?
What is infer? Infer- to use logical reasoning to come to a conclusion based on data and observations
400
7. For an assignment, two different students measured the length of the shadow made by their science textbooks when the books were stood up on the school sidewalk. Both students had the same science book, and both students stood the book up in the exact same way. However, the students came up with different shadow lengths. Which of these best explains why the shadow lengths did not match? A. One of the rulers the student used was incorrect. B. One of the books was heavier than the other book was. C. The students took their measurements at different times of the day. D. The students both measured the shadow length in centimeters instead of in inches.
C. The students took their measurements at different times of the day.
400
When using electrical appliances in a laboratory experiment, what is the correct and safe way to unplug the appliance? a. Hold on to the plug and pull firmly. b. Pull the cord quickly from side to side. c. Hold the cord close to the plug and pull firmly. d. Pull firmly and quickly from the middle of the cord.
a. Hold on to the plug and pull firmly.
500
5. Which pair of instruments would be best for comparing the texture and magnetic properties of different rocks? a. A microscope and a computer b. A calculator and a hot plate c. A hand lens and a magnet d. A thermometer and a balance
c. A hand lens and a magnet
500
What is predict?
What is predict? Predict- use observations and data to form an idea of what will happen under certain conditions
500
8. A student is doing an experiment to find out whether plants that receive plant food grow faster than plants that do not. She uses four pots of the same size and fills them with soil. She plants five bean seeds in each of the first two posts and five tomato seeds in each of the other two pots. She puts plant food in the two pots with the bean seeds. She does not put plant food in the other two pots. The student places all the pots in a sunny window. She gives all of them the same amount of water each day. Every day for two weeks, she measures and records how much the plants have grown. She looks at her results and concludes that plants which receive plant food do grow faster than plants that do not receive it. The student’s conclusion cannot be trusted because she has made an error in designing her experiment. What should the student have done differently so that her conclusion would have been more trustworthy? A. She should have used the same kind of seeds in all the pots. B. She should have put plant food in all the pots. C. She should have watered only the pots with the tomato seeds. D. She should have put only the pots with the bean seeds in the sunny window and the other pots in the shade.
A. She should have used the same kind of seeds in all the pots.
500
18. Armin did an experiment to test whether objects dropped from a second-floor window and from a first-floor window hit the ground at the same time. His friend Michelle says Armin’s results are wrong. What should they do to settle this disagreement? a. Argue about it until one of them gives up. b. Repeat the experiment and compare the results. c. Change Armin’s hypothesis so it matches the results. d. Ask their friends to vote on whether the results are right.
b. Repeat the experiment and compare the results.
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