Test Your Science Knowledge

Here are some science questions to help you test your general science knowledge. They will also show you which of the Florida, Utah, and NGSS science standards each question is testing.

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Cannonball Jelly fish are excellent swimmers, and Portly Spider Crabs often hitch a ride on them. What type of relationship is that?

  1. mutualism

    No. In mutualism, both organisms benefit. The jellyfish gets no benefit from the crab's hitchhiking.
  2. commensalism

    Yes. In commensalism, one organism (the crab) benefits, and the other (jellyfish) is not affected. The crab gets free transportation, and the jellyfish is not helped or harmed.
  3. parasitism

    No. For parasitism, one organism benefits, and the other is harmed. Neither the crab nor the jellyfish is harmed by this relationship.
  4. predation

    No. In predation, one organism eats another. Neither the crab nor the jellyfish gets eaten in this relationship.



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

Florida


SC.7.L.17.2 Compare and contrast the relationships among organisms such as mutualism, predation, parasitism, competition, and commensalism.
Secondary Consumers video, ClosedCaptions
Review Food Web-11 practice
Review Food Web-12 practice

Utah


UT.8.II.2.a Categorize the relationships between organisms (i.e., producer/consumer/decomposer, predator/prey, mutualism/parasitism) and provide examples of each.
Secondary Consumers video, ClosedCaptions
Producers video
Primary Consumers video, ClosedCaptions
What is a Food Web? text page
Review Food Web-2 practice
Review Food Web-1 practice
Review Food Web-3 practice
Review Food Web-4 practice
Review Food Web-5 practice
Review Food Web-6 practice
Review Food Web-7 practice
Review Food Web-8 practice
Review Food Web-9 practice
Review Food Web-10 practice
Review Food Web-11 practice
Review Food Web-12 practice

NGSS


MS-LS2-2 Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.

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 position would the Moon be in during an eclipse of the Sun?

  1. A

    No. In this position, the Earth would not be in the Moon's shadow.
  2. B

    Yes! Solar eclipses only happen during a new moon, but even then, the alignment has to be just right for the Moon's shadow to fall on the Earth.
  3. C

    No. In this position, the Earth would not be in the Moon's shadow.
  4. D

    No. In this position, the Earth would not be in the Moon's shadow. You might get a lunar eclipse in this position, but not a solar eclipse.



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

Florida


SC.4.E.5.2 Describe the changes in the observable shape of the moon over the course of about a month.
Why is a Full Moon So Bright? text page, free
Review Space-6 practice
Review Space-7 practice
Review Space-9 practice

Utah


UT.3.I.1.b Explain that the sun is the source of light that lights the moon.
Why is a Full Moon So Bright? text page, free
Review Space-6 practice
Review Space-7 practice
Review Space-9 practice

UT.6.I.1.a Describe changes in the appearance of the moon during a month.
Why is a Full Moon So Bright? text page, free
Review Space-6 practice
Review Space-7 practice
Review Space-9 practice

NGSS


MS-ESS1-1 Develop and use a model of the Earth-sun-moon system to describe the cyclic patterns of lunar phases, eclipses of the sun and moon, and seasons.
Global Science video, free, ClosedCaptions
Why is a Full Moon So Bright? text page, free
Review Space-6 practice
Review Space-7 practice
Review Space-9 practice
Review Space-12 practice

While this spoon appears to have a broken handle, it is just the result of how the water affects the light. This is an example of:

  1. Refraction

    Yes! Refraction bends light as it moves from one substance to another. As the light passes from the water to the air, its path is changed, making it appear that the spoon is broken.
  2. Reflection

    No. While some light is reflected from the glass, it is not responsible for the bending of the light.
  3. Absorption

    No. The water and glass are both clear, telling us that very little of the light is being absorbed. Absorption does not bend the light.
  4. Diffusion

    No. Diffusion is the scattering of light as it is reflected in many different directions. Diffusion would make the image cloudy and blurry.



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

Florida


SC.3.P.10.3 Demonstrate that light travels in a straight line until it strikes an object or travels from one medium to another.

SC.3.P.10.4 Demonstrate that light can be reflected, refracted, and absorbed.

SC.7.P.10.2 Observe and explain that light can be reflected, refracted, and/or absorbed.

Utah


UT.8.IV.1.b Compare the transfer of energy (i.e., sound, light, earthquake waves, heat) through various mediums.

NGSS


1-PS4-3 Plan and conduct an investigation to determine the effect of placing objects made with different materials in the path of a beam of light.

MS-PS4-2 Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.

When a scientist makes a new discovery, other scientists usually do exactly the same experiment. Why?

  1. They want to get part of the credit.

    No. While replicating an experiment is very important, the scientists who do it usually don't get much credit for their work unless they discover an error in the original experiment.
  2. Repetition is part of the scientific process.

    No. Repetition is when scientists repeat their own experiment several times, not when other scientists do the same experiment.
  3. They think they can make changes to improve the experiment.

    No. By doing exactly the same experiment, they are not changing anything. Instead, they are replicating the experiment as closely as possible.
  4. Replication is part of the scientific process.

    Yes. By replicating the experiment, other scientists can help verify that the results are accurate. There is always a possibility that there was some unnoticed influence on the original experiment, and replication can help spot that.



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.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.6.N.1.2 Explain why scientific investigations should be replicable.

SC.7.N.1.2 Differentiate replication (by others) from repetition (multiple trials).

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

Utah

NGSS

The questions are chosen randomly, so this quest will be different each time.

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See which questions, videos, experiments, and other resources support each of your local science standards.