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.
The questions are chosen randomly, so this quest will be different each time.
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Which part of the food web does this roadrunner belong to?
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Producer.
No. A producer captures energy from sunlight, and stores it as food. To do that, the organism needs to contain chlorophyll. -
Primary Consumer.
No. Primary consumers eat producers. In spite of what you may have seen in cartoons, roadrunners do not eat plants or bird seed. -
Secondary Consumer
Yes! Secondary consumers eat other consumers. Roadrunners are predators, and eat lizards, snakes, mice, and many other small animals. -
Decomposer
No. Roadrunners may occasionally scavenge freshly killed animals, but they are not decomposers.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.4.L.17.3 Trace the flow of energy from the Sun as it is transferred along the food chain through the producers to the consumers.
Primary Consumers | video, ClosedCaptions, Updated, checked |
Scavengers and Decomposers | video, free, ClosedCaptions, Updated |
Secondary Consumers | video, free, ClosedCaptions, Updated, checked |
Producers | video, free, Updated, checked |
What is a Food Web? | text page, free, checked |
Food Web Tag | text page |
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-2 | practice |
SC.7.L.17.1 Explain and illustrate the roles of and relationships among producers, consumers, and decomposers in the process of energy transfer in a food web.
Primary Consumers | video, ClosedCaptions, Updated, checked |
Measuring Calories | video, ClosedCaptions, checked |
Scavengers and Decomposers | video, free, ClosedCaptions, Updated |
Secondary Consumers | video, free, ClosedCaptions, Updated, checked |
Producers | video, free, Updated, checked |
What is a Food Web? | text page, free, checked |
Food Web Tag | text page |
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-2 | 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, free, ClosedCaptions, Updated, checked |
Producers | video, free, Updated, checked |
Primary Consumers | video, ClosedCaptions, Updated, checked |
What is a Food Web? | text page, free, checked |
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 |
Review Food Web-2 | practice |
NGSS
5-PS3-1 Use models to describe that energy in animals’ food (used for body repair, growth, motion, and to maintain body warmth) was once energy from the sun.
Measuring Calories | video, ClosedCaptions, checked |
Scavengers and Decomposers | video, free, ClosedCaptions, Updated |
Secondary Consumers | video, free, ClosedCaptions, Updated, checked |
Producers | video, free, Updated, checked |
Measuring Photosynthesis | video, checked |
Primary Consumers | video, ClosedCaptions, Updated, checked |
Calories: Measuring the Energy | text page, free |
What is a Food Web? | text page, free, checked |
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-2 | practice |
5-LS2-1 Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment.
Scavengers and Decomposers | video, free, ClosedCaptions, Updated |
Secondary Consumers | video, free, ClosedCaptions, Updated, checked |
Producers | video, free, Updated, checked |
Primary Consumers | video, ClosedCaptions, Updated, checked |
What is a Food Web? | text page, free, checked |
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-2 | practice |
Review Food Web-1 | practice |
Review Food Web-3 | practice |
Review Food Web-4 | practice |
Review Food Web-5 | practice |

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?
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Just water
No. With just water, you are removing two variables, the yeast and the sugar. You only want to remove the independent variable.
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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. -
Water and sugar
No. The yeast is not the independent variable, so leaving it out would not be correct. -
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.
Bacteria and Antibiotics | video, ClosedCaptions |
Testing a Leaf for Starch | video, ClosedCaptions |
Review Scientific Process-1 | practice |
Review Scientific Process-2 | practice |
Review Scientific Process-9 | practice |
Review Scientific Process-11 | practice |
SC.7.N.1.4 Identify test variables (independent variables) and outcome variables (dependent variables) in an experiment.
Floating Cups | video, checked |
Testing for Tannic Acid | video |
Review Scientific Process-1 | practice |
Review Scientific Process-2 | practice |
Review Scientific Process-9 | practice |
Review Scientific Process-11 | practice |
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.
What is Science? | video, ClosedCaptions |
Review Scientific Process-1 | practice |
Review Scientific Process-2 | practice |
Review Scientific Process-7 | practice |
Review Scientific Process-9 | practice |
Review Scientific Process-10 | practice |
Review Scientific Process-11 | practice |

Which of these processes forms the VISIBLE part of a cloud?
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Evaporation
No. Evaporation changes liquid water into water vapor. Water vapor is an invisible gas, so it is not the visible part of the cloud. -
Condensation
Yes! Condensation changes water vapor into droplets of liquid water to form the cloud. These are just like the tiny water droplets that form fog, letting you see the cloud. -
Precipitation
No. Precipitation can fall from a cloud, but it is not the process that forms the cloud. -
Convection
No. Convection carries the water vapor upwards so it can cool and condense, but condensation is what forms the visible part of the cloud.
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.9.1 Describe the changes water undergoes when it changes state through heating and cooling by using familiar scientific terms such as melting, freezing, boiling, evaporation, and condensation.
A Model of the Water Cycle | video, ClosedCaptions, checked |
Cloud Formation, part 2 | video |
Making a Solar Still | video |
Wonderful Water | video, checked |
A Watched Pot | video |
Why We Sweat | video, checked |
Photographing Snowflakes | video, checked |
Ice Cream Science | video, checked |
Cloud Formation, part 1 | video, ClosedCaptions, checked |
The Water Cycle | video, checked |
What Really Happens With Evaporation? | text page, free, checked |
Review Weather-1 | practice |
Review Weather-2 | practice |
Review Weather-10 | practice |
SC.5.E.7.1 Create a model to explain the parts of the water cycle. Water can be a gas, a liquid, or a solid and can go back and forth from one state to another.
>>> Teacher Page: Water Cycle
Cloud Formation, part 2 | video |
Cloud Types | video |
Making a Solar Still | video |
A Watched Pot | video |
Photographing Snowflakes | video, checked |
The Water Cycle | video, checked |
A Model of the Water Cycle | video, ClosedCaptions, checked |
Review Weather-1 | practice |
Review Weather-2 | practice |
Review Weather-8 | practice |
Review Weather-10 | practice |
Utah
UT.4.I.2.a Locate examples of evaporation and condensation in the water cycle (e.g., water evaporates when heated and clouds or dew forms when vapor is cooled).
Cloud Types | video |
Making a Solar Still | video |
A Watched Pot | video |
Cloud Formation, part 1 | video, ClosedCaptions, checked |
The Water Cycle | video, checked |
A Model of the Water Cycle | video, ClosedCaptions, checked |
A Cool Experiment | text page |
Review Weather-1 | practice |
Review Weather-2 | practice |
NGSS
MS-ESS2-5 Collect data to provide evidence for how the motions and complex interactions of air masses results in changes in weather conditions.
Cloud Types | video |
Nephoscope | video, checked |
Cloud Formation, part 1 | video, ClosedCaptions, checked |
Pine Cone Weather | text page, free |
Review Weather-1 | practice |
Review Weather-2 | practice |
Review Weather-6 | practice |
Review Weather-4 | practice |
Review Weather-3 | practice |

When you mix cornstarch and water, you get something that many science sites call Oobleck. Under pressure, it feels like a solid, but when the pressure is removed, it flows like a liquid. What state of matter is it?
Answer:
This is a mixture, made up of particles of solid matter surrounded by a liquid. The mixture is not a single state of matter.
This is an important concept to understand, and it is seen in many things we use every day. A good example is the Egg States video, showing how a mixture of liquid and gas can seem to be a solid.
Before you try to decide if something is solid, liquid, gas, plasma, or some other state of matter, first make sure that it is a pure substance, and not a mixture of different states.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.2.P.8.2 Identify objects and materials as solid, liquid, or gas.
Egg States | video, checked |
Experimenting with Dry Ice | video, free, checked |
Ice Cream Science | video, checked |
Raw Egg or Boiled? | video, checked |
Air Space | video |
Teach It Right the First Time. | text page, free |
Review Matter-3 | practice |
SC.5.P.8.1 Compare and contrast the basic properties of solids, liquids, and gases, such as mass, volume, color, texture, and temperature.
>>> Teacher Page: States of Matter
A Bouncing Water Balloon | video |
Egg States | video, checked |
Experimenting with Dry Ice | video, free, checked |
Wax and Wood, part 1 | video, checked |
Wax and Wood, part 2 | video, checked |
Ice Cream Science | video, checked |
Raw Egg or Boiled? | video, checked |
Air Space | video |
Air has Weight | text page |
Teach It Right the First Time. | text page, free |
Review Matter-2 | practice |
Review Matter-1 | practice |
Review Matter-3 | practice |
Review Weather-10 | practice |
SC.8.P.8.1 Explore the scientific theory of atoms (also known as atomic theory) by using models to explain the motion of particles in solids, liquids, and gases.
A Bouncing Water Balloon | video |
Egg States | video, checked |
Experimenting with Dry Ice | video, free, checked |
Ice Cream Science | video, checked |
Expansion of Solids | video, ClosedCaptions, checked |
Review Matter-1 | practice |
Review Matter-3 | practice |
Utah
UT.5.I.2.a Identify the physical properties of matter (e.g., hard, soft, solid, liquid, gas).
A Bouncing Water Balloon | video |
Egg States | video, checked |
Experimenting with Dry Ice | video, free, checked |
Wax and Wood, part 1 | video, checked |
Wax and Wood, part 2 | video, checked |
Ice Cream Science | video, checked |
Raw Egg or Boiled? | video, checked |
Crushed Can | video, checked |
Review Matter-1 | practice |
Review Matter-3 | practice |
NGSS

Which of the following observations is scientifically testable?
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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. -
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. -
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. -
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.
My Position on Science and Religion | video |
What is Science?: Objective | video |
Mobius Strip | video |
Is Your Project Scientifically Testable? | text page |
Is Your Project Scientifically Testable? Part 2 | text page |
Review Scientific Process-3 | practice |
Review Scientific Process-4 | practice |
Review Scientific Process-8 | practice |
SC.8.N.2.1 Distinguish between scientific and pseudoscientific ideas.
What is Science? | video, ClosedCaptions |
Feeding Bread to Birds | text page |
Fact checking GMOs | text page |
I Saw It on the Internet, part four | text page |
I Saw It on the Internet, part three | text page |
I Saw It on the Internet, part two | text page |
I Saw It on the Internet, part one | text page |
Review Scientific Process-3 | practice |
Review Scientific Process-4 | practice |
Review Scientific Process-8 | practice |
Utah
NGSS
The questions are chosen randomly, so this quest will be different each time.