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?

Which organ produces bile to digest the fat in this bacon?
-
Liver
Yes! The liver produces bile, which digests fats. -
Gall Bladder
No. The gall bladder stores the bile, but does not produce it. -
Pancreas
No. The pancreas produces insulin to digest sugar. -
Thyroid
No. The thyroid produces several hormones which control growth and metabolism, but it does not produce bile.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.2.L.14.1 Distinguish human body parts (brain, heart, lungs, stomach, muscles, and skeleton) and their basic functions.
Bird Bones | video, free |
Bendable Bones | video, checked |
Reading a Skeleton | video, free, checked |
Review Anatomy-1 | practice |
Review Anatomy-2 | practice |
Review Anatomy-3 | practice |
SC.5.L.14.1 Identify the organs in the human body and describe their functions, including the skin, brain, heart, lungs, stomach, liver, intestines, pancreas, muscles and skeleton, reproductive organs, kidneys, bladder, and sensory organs.
Bird Bones | video, free |
Kneesy, Earsy, Nosey | video, checked |
Bendable Bones | video, checked |
Just a Suggestion | video |
Reaction Time | video |
Reading a Skeleton | video, free, checked |
Muscles Don't Push | text page |
Review Anatomy-1 | practice |
Review Anatomy-2 | practice |
Review Anatomy-3 | practice |
SC.6.L.14.5 Identify and investigate the general functions of the major systems of the human body (digestive, respiratory, circulatory, reproductive, excretory, immune, nervous, and musculoskeletal) and describe ways these systems interact with each other to maintain homeostasis.
Bird Bones | video, free |
Bendable Bones | video, checked |
Reaction Time | video |
Reading a Skeleton | video, free, checked |
Muscles Don't Push | text page |
Review Anatomy-1 | practice |
Review Anatomy-2 | practice |
Review Anatomy-3 | practice |
Utah
UT.7.III.2.c Relate the structure of an organ to its component parts and the larger system of which it is a part.
Reaction Time | video |
Reading a Skeleton | video, free, checked |
Review Anatomy-1 | practice |
Review Anatomy-2 | practice |
Review Anatomy-3 | practice |
NGSS
MS-LS1-3 Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
Bird Bones | video, free |
Bendable Bones | video, checked |
Reaction Time | video |
Reading a Skeleton | video, free, checked |
Review Anatomy-1 | practice |
Review Anatomy-2 | practice |
Review Anatomy-3 | practice |

This is Halite, also known as table salt. It was formed when ancient seas dried up, leaving layers of salt behind. What kind of rock is it?.
-
Igneous
No. Igneous rocks formed from magma or lava. The Halite was not melted, and is not an igneous rock. -
Sedimentary
Yes! Sedimentary rocks are deposited by wind, water, ice, or gravity, and they often contain fossils. Halite was deposited in large layers by water, which means that it is a sedimentary rock. Halite is also a mineral, and is one of the few rocks/minerals that we eat. -
Metamorphic
No. Metamorphic rocks have been changed by heat and pressure from a different kind of rock. It is not metamorphic. -
Halite is not a rock.
No. Halite is a naturally occurring solid that forms large layers in the Earth. Halite is a rock.
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.6.1 Identify the three categories of rocks: igneous, (formed from molten rock); sedimentary (pieces of other rocks and fossilized organisms); and metamorphic (formed from heat and pressure).
Evaporites | video, learnalong, checked |
Igneous Rocks and Bubbles | video, free, learnalong, Updated |
Sedimentary Rocks | video, learnalong |
What is a Rock? | video, learnalong, checked |
Bioclastics: Rocks With No Minerals | video |
Intrusive and Extrusive Igneous Rocks | text page, learnalong |
Light and Dark Minerals | text page, learnalong |
Homemade Fossil Dig | text page |
Foliated and Unfoliated Rocks | text page, learnalong |
Identifying Igneous Rocks | text page, learnalong |
Review Rocks-2 | practice |
Review Rocks-3 | practice |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-1 | practice |
SC.7.E.6.2 Identify the patterns within the rock cycle and relate them to surface events (weathering and erosion) and sub-surface events (plate tectonics and mountain building).
Evaporites | video, learnalong, checked |
What is a Rock? | video, learnalong, checked |
The Rock Cycle | video, learnalong |
Change: Fast and Slow | video |
Erosion | video, checked |
Continuous Change | video, checked |
Bioclastics: Rocks With No Minerals | video |
Weathering and Erosion | video, learnalong, checked |
Review Erosion-2 | practice |
Review Erosion-3 | practice |
Review Erosion-4 | practice |
Review Erosion-5 | practice |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-1 | practice |
Review Erosion-1 | practice |
Utah
UT.4.III.1.a Describe the differences between minerals and rocks.
What is a Mineral? | video, checked |
Identifying Minerals | video, learnalong |
What is a Rock? | video, learnalong, checked |
Bioclastics: Rocks With No Minerals | video |
Definition of a Mineral | video, checked |
Review Rocks-1 | practice |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
NGSS
4-ESS1-1 Identify evidence from patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
Paleo Cookies | video |
Evaporites | video, learnalong, checked |
Igneous Rocks and Bubbles | video, free, learnalong, Updated |
Sedimentary Rocks | video, learnalong |
Reading the Rocks: Law of Superposition | video |
Reading the Rocks: Law of Crosscutting | video |
What is a Rock? | video, learnalong, checked |
Reading the Rocks: The Present is the Key to the Past | video, ClosedCaptions |
Homemade Fossil Dig | text page |
Review Rocks-4 | practice |
Review Geologic Time-2 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Geologic Time-3 | practice |
Review Rocks-1 | practice |
Review Geologic Time-1 | practice |
MS-ESS2-1 Develop a model to describe the cycling of Earth’s materials and the flow of energy that drives this process.
Bioclastics: Rocks With No Minerals | video |
Evaporites | video, learnalong, checked |
Definition of a Mineral | video, checked |
Igneous Rocks and Bubbles | video, free, learnalong, Updated |
What is a Mineral? | video, checked |
Identifying Minerals | video, learnalong |
Sedimentary Rocks | video, learnalong |
What is a Rock? | video, learnalong, checked |
The Rock Cycle | video, learnalong |
Light and Dark Minerals | text page, learnalong |
Review Rocks-2 | practice |
Review Rocks-3 | practice |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-1 | practice |

Pine trees do not have flowers. What structure do they have that servers the same purpose?
-
Needles
No. Pine needles are a kind of leaf. They are not used for reproduction. -
Cones
Yes! Pine cones produce pollen and seeds, just as flowers do in flowering plants. -
Fruit
No. Fruit are used for dispersing seeds, not for pollination. -
Buds
No. Pine tree buds produce needles. They are not involved in reproduction.
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.3.L.14.1 Describe structures in plants and their roles in food production, support, water and nutrient transport, and reproduction.
Flowers | video, ClosedCaptions |
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 |
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
4-LS1-1 Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction.
Seed Search | video, ClosedCaptions, checked |
Orange Slices | video, ClosedCaptions |
Bird Bones | video, free |
Feathers | video, checked |
Heartless Plants | video, ClosedCaptions, checked |
Nature Watching | video, checked |
Calling a Woodpecker | video, checked |
Pumpkin Guts | video, free, ClosedCaptions, checked |
Eye Shine | text page |
How Does a Butterfly Fly? | text page, free |
Thoughts on an Exoskeleton | text page, free |
Review Plants-1 | practice |
Review Plants-5 | practice |
Review Plants-6 | practice |
Review Plants-7 | practice |
Review Plants-8 | practice |
Review Plants-3 | 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.
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 |
Calling a Woodpecker | video, checked |
Selective Smelling | video, checked |
Pumpkin Guts | video, free, ClosedCaptions, checked |
Seed Search | video, ClosedCaptions, checked |
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 |

I poured some water on this rock. Later that day, the water was all gone. What happened to it?
-
It evaporated.
Yes. When liquid water turns into water vapor, the process is called evaporation. That is what happened to the water on the rock. -
It sublimated.
No. Sublimation is when a solid turns directly into a gas. Dry ice (frozen carbon dioxide) is an example of sublimation. The solid changes directly into carbon dioxide gas, without becoming a liquid. -
It condensed.
No. Condensation is when a gas turns into a liquid. The drops of water that form on the outside of a glass of ice is the result of condensation. -
It precipitated.
No. In weather, precipitation is when solid or liquid water falls from the clouds. Rain, snow, and sleet are examples of precipitation.
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.
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 |
A Model of the Water Cycle | video, ClosedCaptions, 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 |

After I rubbed this ballon against my hair, it stuck to the side of my head. Why?
-
The balloon stuck because I don't have enough hair.
No. While much of my hair is gone, I still have enough to do this experiment. -
The balloon stuck because the balloon had the same charge as my hair.
No. Two things with the same electrostatic charge will repel, pushing apart. -
The balloon stuck because the balloon had a different charge from my hair.
Yes. When I rubbed the balloon against my hair, electrons moved from my hair to the balloon. The extra electrons gave the balloon a negative charge, and the missing electrons left my hair with a positive charge. Opposite charges attract, so the balloon stuck to my hair. -
The balloon stuck because my hair was magnetized.
No. Rubbing a balloon against something does not magnetize it. Even if it was magnetized, a magnet would not attract the rubber balloon.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.5.P.10.3 Investigate and explain that an electrically-charged object can attract an uncharged object and can either attract or repel another charged object without any contact between the objects.
>>> Teacher Page: Electrostatic Charges
Challenge: Paper, Coin, Cup, part 1 | video |
Electrostatic Charges | video |
The Leyden Jar | video, checked |
Versorium | video, checked |
Electrostatics and Water | video, ClosedCaptions, checked |
Challenge: Paper, Coin, Cup, part 2 | video |
Sorting Salt and Pepper | video, checked |
Electricity | video, free, Updated |
Making Water Wiggle | video |
Review Energy-6 | quest |
Review Energy-7 | quest |
Review Energy-8 | quest |
SC.6.P.13.1 Investigate and describe types of forces including contact forces and forces acting at a distance, such as electrical, magnetic, and gravitational.
The Compass and Magnetic Fields | video, ClosedCaptions, checked |
Challenge: Paper, Coin, Cup, part 1 | video |
Making a Compass | video, checked |
Torque | video |
Versorium | video, checked |
Water in a Glass, part 2 | video, checked |
Water in a Glass, part 3 | video, checked |
Water in a Glass, part 1 | video, checked |
Challenge: Paper, Coin, Cup, part 2 | video |
Light a Bulb with a Balloon | video, checked |
Crushed Can | video, checked |
Electricity | video, free, Updated |
Review Energy-6 | quest |
Review Energy-7 | quest |
Review Energy-8 | quest |
Utah
UT.5.IV.1.c Describe the behavior of objects charged with static electricity in attracting or repelling without touching.
Challenge: Paper, Coin, Cup, part 1 | video |
Electrostatic Charges | video |
The Leyden Jar | video, checked |
Versorium | video, checked |
Electrostatics and Water | video, ClosedCaptions, checked |
Challenge: Paper, Coin, Cup, part 2 | video |
Sorting Salt and Pepper | video, checked |
Making Water Wiggle | video |
Review Energy-6 | quest |
Review Energy-7 | quest |
NGSS
MS-PS3-2 Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.
Making Water Wiggle | video |
Measuring Kinetic and Potential Energy | video, checked |
Challenge: Paper, Coin, Cup, part 1 | video |
The Leyden Jar | video, checked |
Versorium | video, checked |
Water in a Glass, part 2 | video, checked |
Water in a Glass, part 3 | video, checked |
Water in a Glass, part 1 | video, checked |
Electrostatics and Water | video, ClosedCaptions, checked |
Challenge: Paper, Coin, Cup, part 2 | video |
Sorting Salt and Pepper | video, checked |
Review Energy-6 | quest |
Review Energy-7 | quest |
Review Energy-8 | quest |
The questions are chosen randomly, so this quest will be different each time.