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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 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.

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

In the Yeast and Sugar video, I added different kinds of sugar to bottles with yeast and warm water. One of the bottles was a control. What should have been in that bottle?

  1. Just water

    No. With just water, you are removing two variables, the yeast and the sugar. You only want to remove the independent variable.
  2. Water and yeast

    Yes! A control should be exactly like the others, but without the independent variable (the variable you are changing in the experiment.) In this case, the variable you are changing is the kind of sugar, so the control should have everything except for the sugar.
  3. Water and sugar

    No. The yeast is not the independent variable, so leaving it out would not be correct.
  4. Water and salt

    No. Adding salt would be adding a new variable, which is not correct.



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 observations is scientifically testable?

  1. Honeybees are good insects.

    No. "Good" is a generic term that could mean many different things in different situations. It is an opinion, not a testable property. This statement is NOT scientifically testable.
  2. Honeybees are important insects.

    No. "Important" is a generic term that could mean many different things to different people. It is an opinion, not a testable property. This statement is NOT scientifically testable.
  3. Honeybees are pretty insects.

    No. Some people might think that a honeybee is pretty, and some people might not. It is an opinion, not a testable property. This statement is NOT scientifically testable.
  4. Honeybees are not insects.

    Yes! While this statement is not correct, it is scientifically testable. You could examine the bee to see that it does fit the definition of an insect. This statement is IS 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 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.

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

Back to the Grade 5 standards.