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- 1. Multiple ChoiceThe BEST reason another scientist is unable to replicate an experiment...They did it wrong.They had variables that were not controlled.They didn't follow the procedure.They measured wrong.
- 2. Multiple ChoiceScientists have MANY trials so their results arecountablegraphablereliablehard to understand
- 3. Multiple ChoiceWhen a another scientist does someone's experiment to see if the results are valid?repetitionreplicationexperimental methodcontrolled variable
- 4. Multiple ChoiceScientists frequently repeat the experiments of others scientists. Why is this important in science?Scientists often ask each other for help in performing experiments.Replication of experiments helps to confirm and verify results.Scientists frequently perform other scientists’ experiments in order to practice their technique.Repeating experiments is an effective way to make sure a laboratory is in optimal condition.
- 5. Multiple ChoiceCaira reads in a science journal that replication and repetiton are so important, but she did not understand the difference between them. Which of the following best explains the two terms?Repetition is when a scientist repeats an experiment; replication is when a scientist conducts an experiment on genetic material.Repetition is when a scientist does the same experiment a number of times; replication is when other scientists reproduce a scientist’s experiment.Repetition is when a scientist publishes in more than one scientific periodical; replication is when another scientist reproduces another scientist’s results.Repetition is when a scientist commits an error in an experiment the first time and must repeat it; replication is when a scientist repeats an experiment to make sure it is valid.
- 6. Multiple ChoiceDr. Smith has been reading about another scientist’s research in a physics journal. He plans to do these experiments himself and see if he gets the same result.repetitionreplication
- 7. Multiple ChoiceJosue goes to Silver River each week for 4 weeks and collects 5 samples of water to test the pH.repetitionreplication
- 8. Multiple ChoiceAn environmental group contacts Nina to get her procedures so that they can check her results.repetitionreplication
- 9. Multiple ChoiceKevin was mixing a batch of glue and borax solution to make silly putty and discovered a new substance that glows in the dark. He gave Ja'nay his specific amounts of ingredients and the steps of his procedure. He asked Ja'nay to try the experiment to see if she gets the same results.repetitionreplication
- 10. Multiple ChoiceHaylena baked chocolate chip cookies that wound up looking like muffins. She asked Lunelka to use the same directions and see if her cookies also look like muffins.repetitionreplication
- 11. Multiple ChoiceMs. Spiers has taught Mini Bear to run a maze. She thinks that the hamster will go faster if she puts its favorite treat at the end. She has the hamster run the maze ten times with the favorite treat and ten times with a regular food pellet. She uses a stopwatch to measure how long it takes for the hamster to get to the reward.repetitionreplication
- 12. Multiple ChoiceRyan is testing golf balls. He drops three different brands of balls from 40 cm and measures how high they bounce. He drops each ball 10 times.repetitionreplication
- 13. Multiple ChoiceAnthony was given a set of 5 metal cubes. He calculated the densities of each to determine the type of metal in each. The densities were really close to each other, so he asked his friend Robert to do the same experiment and see if he gets the same results.repetitionreplication
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