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Quest: 5th Grade, Nature of Science

Here are some science questions to help you test your knowledge of the Next Generation Sunshine State Standards.

The questions are chosen randomly, so this quest will be different each time you reload the page.

Back to the Grade 5 standards.



I wanted to test different amounts of fertilizer to see which was best for growing grass. I mixed water with different amounts of fertilizer, and then added sodium polyacrylate to change it into a gel. Then I sprinkled the grass seeds on top, and waited for them to grow.

I really need a control group for this experiment. What would I use for a control?

  1. Water, fertilizer, and grass seed, without any sodium polyacrylate.

    No. For the control, we want to skip the thing we are testing for. We are not testing changes caused by the amount of sodium polyacrylate.
  2. Water, sodium polyacrylate, and grass seed, without any fertilizer.

    Yes! We are testing to see how different amounts of fertilizer change the growth of the grass. The amount of fertilizer is the variable we are testing, so the control group should not have any fertilizer.
  3. Water, sodium polyacrylate, and fertilizer, without any grass seed.

    No. For the control, we want to skip the thing we are testing for. We are not testing changes caused by the amount of grass seed, and we know that no grass will grow if we do not have any seeds.
  4. Sodium polyacrylate, fertilizer, and grass seed, without any water.

    No. For the control, we want to skip the thing we are testing for. We are not testing changes caused by the amount of water.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.5.N.1.4 Identify a control group and explain its importance in an experiment.

SC.7.N.1.4 Identify test variables (independent variables) and outcome variables (dependent variables) in an experiment.

Utah

NGSS


3-5-ETS1-3 Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.

Which of the following statements is scientifically testable?

  1. These alligators are scary.

    No. Being scary is not a physical property. Instead, it is an opinion. Some people might think they are scary, while other people might think they are not.
  2. These alligators have sharp teeth.

    Yes! Careful observation would show that all three of these alligators have very sharp teeth. Anyone who put their hand into the mouth of these alligators would find out quickly that sharp teeth are a measurable, physical property that is scientifically testable.

    Remember that scientifically testable properties are going to be the same, no matter who tests them. For example, these alligators each have four legs, scaly skin, and lungs for breathing air. They are carnivorous, which means that they eat other animals. They are reptiles, and they lay eggs.

    All of that information is based on physical evidence that can be checked and verified. You could count their legs, examine their skin, etc. These things are scientifically testable.

    On the other hand, opinions are a property of the observer, not the object. I may think alligators are interesting. Someone else may thing they are scary, or ugly, or boring. You could test different people, to see if they think alligators are scary, but you can't test the alligator to see if it is scary. Opinions are not scientific evidence about the object.

  3. These alligators have ugly eyes.

    No. Again, this is an opinion, not a measurable, physical property. I happen to think that alligators have pretty eyes.
  4. These alligators are lazy.

    No. Lazy is not a measurable property. I might call them lazy, but you might think that they are just waiting for something tasty to walk by. Lazy is an opinion, and is not scientifically testable.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.5.N.2.1 Recognize and explain that science is grounded in empirical observations that are testable; explanation must always be linked with evidence.

SC.8.N.2.1 Distinguish between scientific and pseudoscientific ideas.

Utah

NGSS

I used a Density Column to show that olives are denser than cherry tomatoes. To follow proper scientific procedure, the experiment needs to be checked by repetition and replication. What is the difference between repetition and replication?

  1. Repetition means that I do the same experiment again. Replication means that other people do exactly the same experiment again.

    Yes! To confirm your results it is important for you to repeat exactly the same experiment again (repetition) and then for other people to do exactly the same experiment again. (replication). If any of the results from repetition or replication are different from your original data, your original results are NOT confirmed, and you need to do more work.
  2. Repetition means that I do the same experiment again. Replication means that I do the experiment again after correcting errors.

    No. Replication is when other people to do exactly the same experiment.
  3. Repetition means that I do the same experiment again. Replication means that other people try to improve on my experiment.

    No. Replication is when other people to do exactly the same experiment.
  4. Repetition means that I do the experiment again after correcting errors.. Replication means that other people do exactly the same experiment again.

    No. Repetition means that I do the same experiment again.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.2.N.1.4 Explain how particular scientific investigations should yield similar conclusions when repeated.

SC.5.N.1.3: Recognize and explain the need for repeated experimental trials.

>>> Teacher Page: Nature of Science and Dissolving


SC.5.N.2.2 Recognize and explain that when scientific investigations are carried out, the evidence produced by those investigations should be replicable by others.

>>> Teacher Page: Nature of Science and Dissolving


SC.8.N.1.2 Design and conduct a study using repeated trials and replication.

Utah

NGSS


3-5-ETS1-3 Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.

I wanted to test a new fertilizer, to find the best concentration for my garden. I divided my garden into four sections and put a different amount of fertilizer in each section.

My test results showed that using 10 grams of fertilizer per gallon made the plants grow faster and bigger. To follow proper scientific guidelines, what should I do next?

  1. Apply 10 grams of fertilizer per gallon to all the plants in my garden.

    No. While that might make my garden grow well, it would not provide more evidence that this was the best mixture of fertilizer
  2. Do the same experiment over again.

    Yes! Repetition is an important part of the scientific process. If my hypothesis is correct, I should get the same results every time I repeat the experiment.
  3. Do the same experiment, but use a different fertilizer.

    No. Using a different fertilizer would be testing a different variable. I wanted to find the best concentration of the original fertilizer, so testing a different fertilizer would not help with that.
  4. Publish my results, so that other scientists could replicate my experiment.

    No. Replication is an important step, but I should repeat my experiment several times to be sure that I get consistent results before I ask other scientists to try replicating it.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.2.N.1.4 Explain how particular scientific investigations should yield similar conclusions when repeated.

SC.5.N.1.3: Recognize and explain the need for repeated experimental trials.

>>> Teacher Page: Nature of Science and Dissolving


SC.8.N.1.2 Design and conduct a study using repeated trials and replication.

Utah

NGSS


3-5-ETS1-3 Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.

We enjoy the hummingbirds that visit our feeders. I am trying to find the mixture of sugar and water that they like the best.

Each day, I put out four feeders with different amounts of water and sugar. At the end of each day, I measure to see how much of each the hummingbirds drank. Which of the following is NOT an important part of this experiment?

  1. One of the feeders should only contain water, with no sugar.

    No. This IS an important part of the experiment. The feeder without any sugar is the control. If the hummingbirds drink just as much pure water, it would indicate that the sugar is not important.
  2. The feeders should be placed randomly every day.

    No. This IS an important part of the experiment. If you always put the same mixture in the same location, the results may be because the birds like that location instead of because they like the amount of sugar.
  3. I should repeat this experiment every day for several weeks.

    No. This IS an important part of the experiment. The more times you repeat the same test, the more likely you are to get accurate results.
  4. The different mixtures should be colored different colors with nontoxic food coloring.

    Yes. This is NOT an important part of the experiment. It would add a second variable to the experiment, which is a bad thing. You want everything to be the same for each sample, with the only difference being the amount of sugar. If you used different colors and different amounts of sugar, you would not know whether the results were due to the color or the sugar.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.5.N.1.4 Identify a control group and explain its importance in an experiment.

SC.7.N.1.4 Identify test variables (independent variables) and outcome variables (dependent variables) in an experiment.

Utah

NGSS


3-5-ETS1-3 Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.

The questions are chosen randomly, so this quest will be different each time you reload the page.

Back to the Grade 5 standards.