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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I want to test a new fertilizer, to find the best concentration for my garden. To do this, I plan to divide my garden into four sections.
Section A. I will use 5 grams of fertilizer per gallon each time I fertilize.
Section B. I will use 10 grams of fertilizer per gallon each time I fertilize.
Section C. I will use 15 grams of fertilizer per gallon each time I fertilize.
For section D, how much fertilizer per gallon should I use?
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20 grams of fertilizer per gallon.
No. This would be a good thing to test, but for this to be a proper science experiment, it is not the correct answer. -
30 grams of fertilizer per gallon.
No. This would be a good thing to test, but for this to be a proper science experiment, it is not the correct answer. -
1 gram of fertilizer per gallon.
No. This would be a good thing to test, but for this to be a proper science experiment, it is not the correct answer. -
No fertilizer at all.
Yes. For this type of experiment, you need to have a control group. That is a group of test subjects that you do not do anything to. If the control group with no fertilizer grows just as well as the other groups, then I would know that the fertilizer was not working.
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-2 | practice |
Review Scientific Process-9 | practice |
Review Scientific Process-11 | practice |
Review Scientific Process-1 | 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-9 | practice |
Review Scientific Process-11 | practice |
Review Scientific Process-1 | practice |
Review Scientific Process-2 | 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-9 | practice |
Review Scientific Process-10 | practice |
Review Scientific Process-11 | practice |
Review Scientific Process-1 | practice |
Review Scientific Process-2 | practice |
Review Scientific Process-7 | practice |

This snow fell when the temperature outside was 39°F. How can you get snow when the temperature is above freezing?
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The wind made it feel colder, allowing it to snow.
No. While wind chill can make it feel colder, it does not actually make it colder. -
It was colder in the clouds where the snow formed.
Yes. Even when air temperatures at the surface are above freezing, the clouds can be much colder. If the air at the surface is not too warm, the snow can reach the ground without melting. -
Rain froze into snow when it hit the ground.
No. Freezing rain forms ice, not snow. Light, fluffy snow flakes form as they fall through the air, not after they hit the ground. -
This is really hail instead of snow.
No. Hail is made of large chunks of ice, not tiny flakes.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.5.E.7.4 Distinguish among the various forms of precipitation (rain, snow, sleet, and hail), making connections to the weather in a particular place and time.
Photographing Snowflakes | video, checked |
Building a Rain Gauge, part 2 | video, checked |
Building a Rain Gauge, part 1 | video, checked |
Snow Rollers | text page |
Review Weather-6 | practice |
Review Weather-3 | practice |
SC.6.E.7.3 Describe how global patterns such as the jet stream and ocean currents influence local weather in measurable terms such as temperature, air pressure, wind direction and speed, and humidity and precipitation.
Nephoscope | video, checked |
Review Weather-6 | practice |
Utah
UT.4.II.2.a Observe and record effects of air temperature on precipitation (e.g., below freezing results in snow, above freezing results in rain).
Photographing Snowflakes | video, checked |
Building a Rain Gauge, part 2 | video, checked |
Building a Rain Gauge, part 1 | video, checked |
Review Weather-6 | practice |
Review Weather-3 | practice |
NGSS
3-ESS2-1 Represent data in tables and graphical displays to describe typical weather conditions expected during a particular season.
Nephoscope | video, checked |
Pine Cone Weather | text page, free |
Review Weather-6 | practice |
Review Weather-4 | practice |
Review Weather-3 | practice |
Review Space-5 | practice |
Review Space-8 | practice |
Review Weather-5 | practice |
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 water freezes into ice, its volume increases. What happens to its mass?
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It increases.
No. When water freezes, it takes up more space, but the mass stays the same. -
It stays the same.
Yes. When water freezes, it expands to take up more space, but its mass stays the same. Mass is the measure of how much "stuff" is there. Freezing water does not create new water or add more "stuff". It just makes the water take up more space. -
It decreases.
No. The mass stays the same, even when the water freezes. -
Water does not have mass.
No. Everything that is made out of matter has mass.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.4.P.8.3 Explore the Law of Conservation of Mass by demonstrating that the mass of a whole object is always the same as the sum of the masses of its parts.
The Difference Between Weight and Mass | video, checked |
Review Matter-2 | practice |
Review Matter-6 | 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
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 |
A Bouncing Water Balloon | video |
Egg States | video, checked |
Experimenting with Dry Ice | video, free, checked |
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.9.1 Explore the Law of Conservation of Mass by demonstrating and concluding that mass is conserved when substances undergo physical and chemical changes.
Making Butter | video, free, ClosedCaptions, Updated |
Review Matter-6 | practice |
Review Matter-2 | practice |
Utah
UT.5.I.1.b Compare the weight of a specified quantity of matter before and after it undergoes melting or freezing.
Ice Cream Science | video, checked |
Review Matter-2 | practice |
UT.7.I.2.a Use appropriate instruments to determine mass and volume of solids and liquids and record data.
Review Matter-2 | practice |
NGSS
5-PS1-2 Measure and graph quantities to provide evidence that regardless of the type of change that occurs when heating, cooling, or mixing substances, the total weight of matter is conserved.
Ice Cream Science | video, checked |
Chemical and Physical Changes | video, ClosedCaptions, checked |
Making Butter | video, free, ClosedCaptions, Updated |
The Difference Between Weight and Mass | video, checked |
Air has Weight | text page |
Review Matter-2 | practice |
Review Matter-6 | practice |

The brown spots on this fern contain spores. How are spores different from seeds?
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Spores are much smaller, because they do not contain stored food for the young plant.
That is part of the answer. Most seeds contain stored food for the developing plant. Orchid seeds are an exception.. -
Spores are a form of asexual reproduction.
That is part of the answer. Spores contain only the genetic material from the parent plant. -
Spores develop into a different kind of plant from the parent.
This is part of the answer. Ferns have alternation of generations, which means that the spores grow into a plant called a prothallia. The prothallia produces male and female sex cells, which join, and grow into another fern plant. -
All of the above.
Yes! All three of the answers are correct.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.3.L.15.2 Classify flowering and nonflowering plants into major groups such as those that produce seeds, or those like ferns and mosses that produce spores, according to their physical characteristics.
Pumpkin Guts | video, free, ClosedCaptions, checked |
Seed Search | video, ClosedCaptions, checked |
Review Plants-4 | practice |
Review Plants-8 | practice |
SC.4.L.16.4 Compare and contrast the major stages in the life cycles of Florida plants and animals, such as those that undergo incomplete and complete metamorphosis, and flowering and nonflowering seedbearing
plants.
Orange Slices | video, ClosedCaptions |
Creating a Sprout Guide | text page, photography, free |
Review Life Cycle-1 | practice |
Review Life Cycle-2 | practice |
Review Plants-4 | practice |
Review Life Cycle-3 | practice |
Review Life Cycle-4 | practice |
Utah
UT.5.V.1.e Investigate variations and similarities in plants grown from seeds of a parent plant (e.g., how seeds from the same plant species can produce different colored flowers or identical flowers).
Review Plants-4 | practice |
UT.7.IV.1.c Cite examples of organisms that reproduce sexually (e.g., rats, mosquitoes, salmon, sunflowers) and those that reproduce asexually (e.g., hydra, planaria, bacteria, fungi, cuttings from house plants).
Pumpkin Guts | video, free, ClosedCaptions, checked |
Review Plants-4 | practice |
NGSS
MS-LS1-4 Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.
Calling a Woodpecker | video, checked |
Selective Smelling | video, checked |
Pumpkin Guts | video, free, ClosedCaptions, checked |
Seed Search | video, ClosedCaptions, checked |
Orange Slices | video, ClosedCaptions |
Bacteria and Antibiotics | video, ClosedCaptions |
Flowers | video, ClosedCaptions |
Onion Crystals | video |
A Walk in the Park | video, checked |
Nature Watching | video, checked |
Thoughts on an Exoskeleton | text page, free |
How Does a Butterfly Fly? | text page, free |
Review Adaptation-3 | practice |
Review Plants-2 | practice |
Review Plants-4 | practice |
Review Adaptation-4 | practice |
Review Adaptation-5 | practice |
Review Adaptation-6 | practice |
Review Plants-8 | practice |
MS-LS3-2 Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.
Extracting Your Own DNA | video |
Review Plants-3 | practice |
Review Plants-4 | practice |
MS-LS3-2 Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.
Extracting Your Own DNA | video |
Review Plants-3 | practice |
Review Plants-4 | practice |

The "strings" in a stalk of celery are made up of xylem and phloem. Which part of your body comes closest to serving the same function?
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Skeleton
No. Your skeleton provides support and protection. In plants, the cell wall provides support and protection. -
Intestines
No. Your intestines allow you to absorb nutrients from your food. Plants make their own food, so they do not need a digestive system. -
Nerves
No. Your nerves carry signals to let the parts of your body communicate. They carry messages for your senses, to move your muscles, etc. Instead of having nerves, plants release chemicals that signal other parts of the plant. -
Blood Vessels
Yes! Your blood vessels carry water and nutrients to different parts of your body. In plants, the xylem is made up of tubes that carry water and some nutrients from the roots upwards to other parts of the plant. The phloem is made up of tubes that carry the sugar produce by photosynthesis to other parts of the plant. While they work in very different ways, your blood vessels serve basically the same function (carrying water and nutrients) as the xylem and phloem in plants.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.3.L.14.1 Describe structures in plants and their roles in food production, support, water and nutrient transport, and reproduction.
Measuring Photosynthesis | video, checked |
Seed Search | video, ClosedCaptions, checked |
Orange Slices | video, ClosedCaptions |
Testing a Leaf for Starch | video, ClosedCaptions |
Flowers | video, ClosedCaptions |
Heartless Plants | video, ClosedCaptions, checked |
Pumpkin Guts | video, free, ClosedCaptions, checked |
Smell the Flowers | text page |
Review Plants-3 | practice |
Review Plants-2 | practice |
Review Plants-5 | practice |
Review Plants-6 | practice |
Review Plants-7 | practice |
Review Plants-8 | practice |
SC.5.L.14.2 Compare and contrast the function of organs and other physical structures of plants and animals, including humans, for example: some animals have skeletons for support — some with internal skeletons others with exoskeletons — while some plants have stems for support.
Orange Slices | video, ClosedCaptions |
Bird Bones | video, free |
Reading a Skeleton | video, free, checked |
Thoughts on an Exoskeleton | text page, free |
Review Plants-5 | practice |
Review Plants-6 | practice |
Review Plants-7 | practice |
Utah
UT.6.V.1.b Compare characteristics common in observed organisms (e.g., color, movement, appendages, shape) and infer their function (e.g., green color found in organisms that are producers, appendages help movement).
Onion Crystals | video |
A Walk in the Park | video, checked |
Selective Smelling | video, checked |
Thoughts on an Exoskeleton | text page, free |
Review Adaptation-3 | practice |
Review Adaptation-4 | practice |
Review Plants-5 | practice |
Review Plants-6 | practice |
Review Adaptation-5 | practice |
Review Plants-7 | practice |
Review Adaptation-6 | practice |
UT.7.IV.2.d Relate the structure of organs to an organism’s ability to survive in a specific environment (e.g., hollow bird bones allow them to fly in air, hollow structure of hair insulates animals from hot or cold, dense root structure allows plants to grow in compact soil, fish fins aid fish in moving in water).
Calling a Woodpecker | video, checked |
Selective Smelling | video, checked |
Seed Search | video, ClosedCaptions, checked |
Orange Slices | video, ClosedCaptions |
Flowers | video, ClosedCaptions |
Onion Crystals | video |
Hunting with an Umbrella | video, free, ClosedCaptions, Updated |
Bendable Bones | video, checked |
Thoughts on an Exoskeleton | text page, free |
Review Plants-5 | practice |
Review Plants-6 | practice |
Review Plants-7 | practice |
NGSS
MS-LS1-1 Conduct an investigation to provide evidence that living things are made of cells; either one cell or many different numbers and types of cells.
Microscopes: Making a Wet Mount | video, learnalong, checked |
Microscopes: Making a Dry Mount | video, learnalong, checked |
Microscopes: Making a Hay Infusion | video, free, learnalong, checked |
901 | photo challenge, free |
The questions are chosen randomly, so this quest will be different each time.