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.
Get 5 more random questions.
Would you rather see the most recently added questions?

The light area on the left side of this photo is the Milky Way. What is the Milky Way?
-
A constellation.
No. The Milky Way contains many more stars than a constellation. -
A solar system.
No. A solar system only has one star, not a huge number of stars. -
A galaxy.
Yes! Our solar system is part of the Milky Way galaxy. When we lived in the city, the lights made it difficult to see the Milky Way. Now that we live far from city lights, it is amazingly easy to see. -
A universe.
No. The Milky Way is only a small part of the entire universe.
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.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify our home galaxy as the Milky Way.
| Review Space-2 | practice |
| Review Space-1 | practice |
| Review Space-10 | practice |
SC.8.E.5.3 Distinguish the hierarchical relationships between planets and other astronomical bodies relative to solar system, galaxy, and universe, including distance, size, and composition.
| Making a Scale Model of the Solar System | video, ClosedCaptions |
| Planets and Pennies | video, ClosedCaptions |
| How Far is That Planet? | text page |
| Review Space-3 | practice |
| Review Space-2 | practice |
| Review Space-10 | practice |
Utah
UT.6.IV.1.c Compare the size of the Solar System to the size of the Milky Way galaxy.
| Review Space-2 | practice |
| Review Space-10 | practice |
NGSS
MS-ESS1-2 Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.
| Planets and Pennies | video, ClosedCaptions |
| Review Space-13 | quest |
| Review Space-10 | practice |

Which of the following is NOT a characteristic of ALL mammals?
-
All mammals have hair.
No. All mammals DO have hair. Even whales and dolphins have some hair on their skin. -
All mammals give birth to live young.
Yes! While most species of mammals give birth to live young, a few (platypus, echidna) lay eggs. -
All mammals have mammary glands.
No. All mammals DO have mammary glands. In females, these glands can produce milk to feed their young. -
All mammals have three bones in their inner ear.
No. All mammals DO have three bones in their inner ear. These bones are called the malleus, the incus, and the stapes. They transfer vibration from the ear drum to the inner ear.
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.15.1 Classify animals into major groups (mammals, birds, reptiles, amphibians, fish, arthropods, vertebrates and invertebrates, those having live births and those which lay eggs) according to their physical characteristics and behaviors.
| Feathers | video, checked |
| A Walk in the Park | video, checked |
| Scientific Names | video, ClosedCaptions |
| Review Classify-2 | practice |
| Review Classify-1 | practice |
| Review Classify-3 | practice |
SC.6.L.15.1 Analyze and describe how and why organisms are classified according to shared characteristics with emphasis on the Linnaean system combined with the concept of Domains.
| Scientific Names | video, ClosedCaptions |
| Review Classify-2 | practice |
| Review Classify-1 | practice |
| Review Classify-3 | practice |
Utah
UT.4.V.3.b Use a simple classification system to classify unfamiliar Utah plants or animals (e.g., fish/amphibians/reptile/bird/mammal, invertebrate/vertebrate, tree/shrub/grass, deciduous/conifers).
| A Walk in the Park | video, checked |
| Scientific Names | video, ClosedCaptions |
| Review Classify-2 | practice |
| Review Classify-1 | practice |
| Review Classify-3 | practice |
UT.7.V.2.c Generalize rules for classification.
| Scientific Names | video, ClosedCaptions |
| Review Classify-2 | practice |
| Review Classify-1 | practice |
| Review Classify-3 | practice |
NGSS

Which part of the food web does this roadrunner belong to?
-
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.
| 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 |
| Food Web Tag | text page |
| 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 |
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.
| Measuring Calories | video, ClosedCaptions, checked |
| 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 |
| Food Web Tag | text page |
| 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 |
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-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 |
| Review Food Web-1 | practice |
| Review Food Web-3 | practice |
| Review Food Web-4 | practice |
| Review Food Web-5 | 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 |
| What is a Food Web? | text page, free, checked |
| Calories: Measuring the Energy | text page, free |
| 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-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 |

Eyeglasses and camera lenses change the path of light to focus an image. Which of the following is responsible for that change?
-
Refraction
Yes! Refraction bends light as it moves from one substance to another. By bending the light, we can use refraction to focus the image in a camera, or to correct the focus of the lens in our eyes. -
Reflection
No. While some light is reflected from a lens, that does not help us focus the image. -
Absorption
No. The lens is clear, telling us that very little of the light is being absorbed. Absorption does not help the lens focus. -
Diffusion
No. Diffusion is the scattering of light as it is reflected in many different directions. Diffusion would make the image cloudy and blurry, not help focus it.
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.
| Why Wet Things Turn Dark | video, checked |
| Growing Crystals Under the Microscope | video, free, learnalong, checked |
| Changing the Speed of Light | video |
| Why is Foam White? | video, checked |
| Microscopes: Growing Crystals | video, free, learnalong, Updated |
| Sunglass Science: Birefringence | video, free, Updated |
| Sunglass Science: Polarized Light | video, free, Updated |
| Mirage | video, free, ClosedCaptions, Updated |
| Pinhole Eyeglasses | video, checked |
| A Long Lens | text page |
| Review Light-2 | practice |
| Review Light-3 | practice |
| Review Light-4 | practice |
| Review Light-5 | practice |
| Review Light-1 | practice |
SC.3.P.10.4 Demonstrate that light can be reflected, refracted, and absorbed.
| Why Wet Things Turn Dark | video, checked |
| Growing Crystals Under the Microscope | video, free, learnalong, checked |
| Changing the Speed of Light | video |
| Why is Foam White? | video, checked |
| Onion Crystals | video |
| Microscopes: Growing Crystals | video, free, learnalong, Updated |
| Sunglass Science: Birefringence | video, free, Updated |
| Sunglass Science: Polarized Light | video, free, Updated |
| Mirage | video, free, ClosedCaptions, Updated |
| Pinhole Eyeglasses | video, checked |
| Looking for Rainbows | video |
| A Long Lens | text page |
| Sunlight, Energy, and Crayons | text page, free |
| Review Light-2 | practice |
| Review Light-3 | practice |
| Review Light-4 | practice |
| Review Light-5 | practice |
| Review Light-1 | practice |
SC.7.P.10.2 Observe and explain that light can be reflected, refracted, and/or absorbed.
| Why Wet Things Turn Dark | video, checked |
| Growing Crystals Under the Microscope | video, free, learnalong, checked |
| Finding Fat in Foods | video, ClosedCaptions, checked |
| Changing the Speed of Light | video |
| Onion Crystals | video |
| Why is Foam White? | video, checked |
| Microscopes: Growing Crystals | video, free, learnalong, Updated |
| Sunglass Science: Birefringence | video, free, Updated |
| Sunglass Science: Polarized Light | video, free, Updated |
| Mirage | video, free, ClosedCaptions, Updated |
| Pinhole Eyeglasses | video, checked |
| A Long Lens | text page |
| Sunlight, Energy, and Crayons | text page, free |
| Review Light-1 | practice |
| Review Light-2 | practice |
| Review Light-3 | practice |
| Review Light-4 | practice |
| Review Light-5 | practice |
Utah
UT.8.IV.1.b Compare the transfer of energy (i.e., sound, light, earthquake waves, heat) through various mediums.
| Spoon Bells | video, checked |
| The Singing Glass | video, checked |
| Why Wet Things Turn Dark | video, checked |
| The Science of Pizza | video, checked |
| Heating a Balloon | video, ClosedCaptions, checked |
| Changing the Speed of Light | video |
| Doppler Effect | video, checked |
| Solar Power | video, checked |
| Sunglass Science: Birefringence | video, free, Updated |
| Sunglass Science: Polarized Light | video, free, Updated |
| Noisy String | video, checked |
| Mirage | video, free, ClosedCaptions, Updated |
| About Microwaves | video, checked |
| Microwave Chocolate | video, checked |
| Comparing How Sound Moves Through Liquids and Gases | text page |
| Review Light-1 | practice |
| Review Light-2 | practice |
| Review Light-4 | practice |
| Review Light-5 | practice |
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.
| Pinhole Eyeglasses | video, checked |
| Why Wet Things Turn Dark | video, checked |
| Growing Crystals Under the Microscope | video, free, learnalong, checked |
| Sunprints | video |
| Changing the Speed of Light | video |
| Why is Foam White? | video, checked |
| Onion Crystals | video |
| Microscopes: Growing Crystals | video, free, learnalong, Updated |
| Sunglass Science: Birefringence | video, free, Updated |
| Sunglass Science: Polarized Light | video, free, Updated |
| Mirage | video, free, ClosedCaptions, Updated |
| A Color You Can't See | video, free, checked |
| A Long Lens | text page |
| Review Light-1 | practice |
| Review Light-2 | practice |
| Review Light-3 | practice |
| Review Light-4 | practice |
| Review Light-5 | practice |
MS-PS4-2 Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
| Why Wet Things Turn Dark | video, checked |
| Onion Crystals | video |
| Sunprints | video |
| Finding Fat in Foods | video, ClosedCaptions, checked |
| Changing the Speed of Light | video |
| Why is Foam White? | video, checked |
| Sunglass Science: Birefringence | video, free, Updated |
| Sunglass Science: Polarized Light | video, free, Updated |
| Mirage | video, free, ClosedCaptions, Updated |
| About Microwaves | video, checked |
| Microwave Chocolate | video, checked |
| A Long Lens | text page |
| Sunlight, Energy, and Crayons | text page, free |
| Review Light-1 | practice |
| Review Light-2 | practice |
| Review Light-4 | practice |
| Review Light-5 | practice |

The white, fluffy part of the Salsify plant is very similar to the fluffy part of a Dandelion plant. What is its function?
-
Pollinating the seeds.
No. Pollination occurs with the flower, not with the fluffy part of the seed. -
Producing the seeds.
No. The fluffy part is part of the seed. It does not produce the seed. -
Dispersing the seeds.
Yes! The fluffy part of the seed catches the wind, letting a breeze scatter the seeds over a large area. -
Germinating the seeds.
No. Germination occurs after the seed reaches the proper conditions, with soil and water.
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.
| Heartless Plants | video, ClosedCaptions, checked |
| Pumpkin Guts | video, free, ClosedCaptions, checked |
| Measuring Photosynthesis | video, checked |
| Seed Search | video, ClosedCaptions, checked |
| Orange Slices | video, ClosedCaptions |
| Testing a Leaf for Starch | video, ClosedCaptions |
| Flowers | video, ClosedCaptions |
| Smell the Flowers | text page |
| Review Plants-5 | practice |
| Review Plants-6 | practice |
| Review Plants-7 | practice |
| Review Plants-8 | practice |
| Review Plants-3 | practice |
| Review Plants-2 | practice |
SC.4.L.16.1 Identify processes of sexual reproduction in flowering plants, including pollination, fertilization (seed production), seed dispersal, and germination.
| Pumpkin Guts | video, free, ClosedCaptions, checked |
| Seed Search | video, ClosedCaptions, checked |
| Orange Slices | video, ClosedCaptions |
| Flowers | video, ClosedCaptions |
| Review Plants-3 | practice |
| Review Plants-2 | practice |
| Review Plants-6 | practice |
| Review Plants-7 | practice |
| Review Plants-8 | practice |
Utah
NGSS
2-LS2-2 Develop a simple model that mimics the function of an animal in dispersing seeds or pollinating plants.
| Pumpkin Guts | video, free, ClosedCaptions, checked |
| Seed Search | video, ClosedCaptions, checked |
| Flowers | video, ClosedCaptions |
| Review Plants-2 | practice |
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.
| Bacteria and Antibiotics | video, ClosedCaptions |
| Flowers | video, ClosedCaptions |
| Onion Crystals | video |
| A Walk in the Park | video, checked |
| Nature Watching | video, checked |
| Calling a Woodpecker | video, checked |
| Selective Smelling | video, checked |
| Pumpkin Guts | video, free, ClosedCaptions, checked |
| Seed Search | video, ClosedCaptions, checked |
| Orange Slices | video, ClosedCaptions |
| How Does a Butterfly Fly? | text page, free |
| Thoughts on an Exoskeleton | 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 |
The questions are chosen randomly, so this quest will be different each time.
