Pasta Stock Car
Correct Order
Definitions
Data
Variables
100
What pasta was used as the "axel" of the car?
What is spaghetti.
100
According to the scientific method, what should you do before you formulate a hypothesis? a. Tell other scientists what you discovered. b. Collect data. c. Study the results. d. Make observations and identify the problem.
What is d. Make observations and identify the problem.
100
A ______________ is a first or preliminary model of something, from which other forms are developed or copied.
What is a prototype.
100
Which of the following are NOT examples of data? a. quantitative observations b. qualitative observations c. theories d. measurements
What is c. theories
100
What is a variable? (YOU CANNOT USE THE WORD SOMETHING IN YOUR DEFINITION)
What is "an element, feature, or factor that is liable to vary or change."
200
While creating your prototype, what did your group and you reference to create an accurate prototype?
What is a scaled drawing.
200
Joseph has hypothesized that sound travels in waves. If he were following the scientific method, what should he do next? a. Ask a question. b. Study the results. c. Test the hypothesis. d. Tell other scientists about his hypothesis.
What is c. Test the hypothesis.
200
To find out why something is not working properly in order to fix the problem.
What is to troubleshoot.
200
Why is it important to gather accurate data?
What is so you can come up with accurate conclusions. ANSWERS MAY VARY.
200
In science, a hypothesis must be a. correct. b. manipulated. c. controlled. d. testable.
What is d. testable.
300
What was the goal of the pasta stock car experiment?
What is "to create a fast pasta car that will go long distances."
300
Eddie experimented to find which freezes more easily, distilled water or salt water. In what order should he do the following steps? 1. Dissolve 30 grams of salt in one of the beakers. 2. Make a prediction of which liquid will freeze first. 3. Place both beakers in a freezer and observe which liquid freezes first. 4. Fill two beakers with 250 mL of distilled water. 5. Write a report on his findings. a. 4 → 1 → 3 → 5 → 2 b. 2 → 4 → 1 → 3 → 5 c. 4 → 1 → 3 → 2 → 5 d. 2 → 4 → 3 → 1 → 5
What is b. 2 → 4 → 1 → 3 → 5.
300
The ____________________ are quantities that a scientist wants to remain constant in an experiment.
What is the controlled variables
300
Which of the following is an example of thinking scientifically about a topic? a. finding out how bicycles work b. reading a consumer report about bicycles c. evaluating the costs of bicycles d. investigating the invention of bicycles
What is a. finding out how bicycles work
300
A biologist has hypothesized that a certain species of bacteria reproduces most rapidly in an environment where the temperature is 25ºC. When the biologist designs her experiment, what should be the manipulated variable of the experiment? a. Temperature b. food source c. Petri dish size d. type of bacteria species
What is a. Temperature
400
What variables were controlled in the pasta stock car lab? GIVE at least 2 examples.
What is the length and size of ramp, height of ramp off the floor, the way the car was released, starting line, distances (50, 100, 150 cm)
400
. Rick is a biologist who hypothesized that squid would swim faster in warm water than in cold water. Rick conducted his experiment. He discovered that squid swim at the same rate in warm and cold temperatures. What should Rick do next? a. Throw away his experiment notes. b. Report that squid swim faster in warm water. c. Report his findings. d. Change his hypothesis.
What is c. Report his findings.
400
The ___________________ is the one factor that a scientist CHANGES in an experiment.
What is the manipulated variable.
400
Kimberly wants to build a computer model of her local climate. What sort of data should Kimberly collect in order to create her model? a. barometric readings and wind speeds for the last 6 months b. average monthly temperatures and precipitation levels for the last 10 years c. average temperatures and precipitation levels for July of the last 10 years d. forecasted temperatures and precipitation
What is c. average temperatures and precipitation levels for July of the last 10 years
400
Your teacher has asked you to perform an experiment to see if the shape of objects, alone, affects the motion of objects. Which of the following would be the best experiment to perform? a. Apply the same amount of force to a ball, cylinder, cube, and pyramid, each of the same mass. b. Apply different amounts of force to the same ball. c. Apply the same amount of force to a ball, cylinder, cube, and pyramid, each of a different mass. d. Apply the same amount of force to balls of different masses.
What is a. Apply the same amount of force to a ball, cylinder, cube, and pyramid, each of the same mass.
500
What was the manipulative variable in this experiment?
What is the amount of pasta used to construct the car.
500
While David was riding his bike around the circular cul-de-sac by his house, he wondered if the constant circular motion was having any effect on his tires. What would be the best way for David to investigate this? a. Measure the total distance traveled on his bike and divide this by how long it took him. b. Have someone videotape him riding and look for changes in the tires' performance. c. Measure the wear on his treads before and after riding a certain number of laps. d. Time how long it takes him to ride 5 laps around his cul-de-sac.
What is c. Measure the wear on his treads before and after riding a certain number of laps.
500
The ___________________ is the set of steps that a designer takes to go from first, identifying a problem or need to, at the end, creating and developing a solution that solves the problem or meets the need.
What is the Engineering/Technology Design Process.
500
David would like to determine how mixing two solutions that chemically react with each other affects the volume of the solutions. David hypothesizes that the solutions will increase in volume. David tests his experiment by: 1. Selecting the solutions to test. 2. Pouring the solutions together. 3. Measuring the volume of the solutions after the chemical reaction has taken place. 4. Recording his results What is wrong with how David tested his hypothesis? a. David did not time how long the chemical reaction took to occur. b. The hypothesis was not valid because no solutions can change in volume. c. David did not perform the experiment on another set of solutions. d. David did not measure the solutions' volumes before mixing the solutions.
What is d. David did not measure the solutions' volumes before mixing the solutions.
500
24. Nick is conducting a controlled experiment to test whether music helps daisies grow faster. Below are the steps to Nick's experiment: 1. Plant daisies in two separate flowerpots. 2. Place flowerpot 1 in a green room with music. 3. Place flowerpot 2 in a similar green room without music. 4. Give the daisies the same amount of food and water each week. 5. Measure the growth of the daisies. 6. Draw conclusions based on the data collected. Which group is the control group in Nick's experiment? a. flowerpot 1 b. the music c. the green room d. flowerpot 2
What is d. flowerpot 2
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