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?

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?
-
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-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 |

Answer:
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

These building stones are made of a rock called coquina. The rock is almost entirely made up of pieces of fossil sea shells. What kind of rock is it?
-
Igneous
No. Igneous rocks formed from magma or lava. That would have melted and destroyed the fossil shells. This is not an igneous rock. -
Sedimentary
Yes! Sedimentary rocks are deposited by wind, water, ice, or gravity, and they often contain fossils. These bits of shell were deposited by water, so coquina is a Sedimentary rock. -
Metamorphic
No. Coquina has not been changed by heat and pressure from a different kind of rock, so it is not metamorphic. -
Coquina is not a rock.
No. Coquina is a naturally occurring solid that forms large layers in the Earth. Coquina 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 |
| Homemade Fossil Dig | text page |
| Foliated and Unfoliated Rocks | text page, learnalong |
| Identifying Igneous Rocks | text page, learnalong |
| Intrusive and Extrusive Igneous Rocks | text page, learnalong |
| Light and Dark Minerals | text page, learnalong |
| 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 |
| Review Rocks-2 | practice |
| Review Rocks-3 | 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 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 |
| Review Erosion-2 | practice |
| Review Erosion-3 | practice |
| Review Erosion-4 | practice |
| Review Erosion-5 | practice |
| Review Rocks-4 | practice |
| Review Rocks-5 | 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.
| 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 |
| Paleo Cookies | video |
| Homemade Fossil Dig | text page |
| 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 |
| Review Rocks-4 | practice |
| Review Geologic Time-2 | practice |
| Review Rocks-5 | practice |
| Review Rocks-6 | practice |
| Review Rocks-8 | practice |
MS-ESS2-1 Develop a model to describe the cycling of Earth’s materials and the flow of energy that drives this process.
| 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 |
| Bioclastics: Rocks With No Minerals | video |
| Light and Dark Minerals | text page, learnalong |
| 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 |
| Review Rocks-2 | practice |
| Review Rocks-3 | practice |
| Review Rocks-4 | practice |

Which position would the Moon be in during an eclipse of the Moon?
-
A
No. In this position, the Moon would not be in the Earth's shadow. -
B
No. In this position, the Moon would not be in the Earth's shadow. -
C
No. In this position, the Moon would not be in the Earth's shadow. -
D
Yes. In this position, the Moon could be in the Earth's shadow. It does not always pass through the shadow, so we don't have an eclipse every month, but when it does, it will be in this position.
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, checked |
| 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, checked |
| 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, checked |
| 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, ClosedCaptions |
| Why is a Full Moon So Bright? | text page, free, checked |
| Review Space-6 | practice |
| Review Space-7 | practice |
| Review Space-9 | practice |
| Review Space-12 | practice |

I put a paper plate on top of a glass of water. I turned it over, and the water stayed in the glass.
The weight of the water is pushing down on the paper plate, but the plate stays in the glass because the pull of gravity is being balanced by another force. What is that force?
-
Attraction
No. The slight attraction between the water and the glass is not enough to balance the pull of gravity. -
Air pressure
Yes! Because the plate is keeping outside air from entering the glass, outside air pressure is keeping the plate in place. As long as the outside air pressure is enough to balance the weight of the water and the plate, it will stay in place. If you made a small hole in the glass to let outside air get in, that would unbalance things, and the water would fall out. -
Surface tension
No. The water tension at the surface of the water would not balance the force of gravity. -
The weight of the paper card
No. Gravity is pulling down on the paper plate and the water. The weight of the paper does not help balance the force of gravity.
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.13.3 Recognize that objects are pulled toward the ground unless something holds them up.
| Water in a Glass, part 2 | video, checked |
| Water in a Glass, part 3 | video, checked |
| Water in a Glass, part 1 | video, checked |
| Planets and Pennies | video, ClosedCaptions |
| Review Force and Motion-4 | practice |
SC.3.E.5.4 Explore the Law of Gravity by demonstrating that gravity is a force that can be overcome.
| Floating Cups | 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 |
| Planets and Pennies | video, ClosedCaptions |
| More Science of Balance | video, checked |
| Science of Balance | video, checked |
| Force, Pressure, and Shoes | video, checked |
| Review Force and Motion-4 | practice |
SC.5.P.13.4 Investigate and explain that when a force is applied to an object but it does not move, it is because another opposing force is being applied by something in the environment so that the forces are balanced.
| Science of Balance | video, checked |
| The Old Tablecloth Trick | video |
| Force, Pressure, and Shoes | video, checked |
| Bernoulli Effect | video |
| Hanging a Hammer | video, checked |
| Torque | video |
| Water in a Glass, part 2 | video, checked |
| Water in a Glass, part 3 | video, checked |
| Water in a Glass, part 1 | video, checked |
| Newton's First Law of Motion | video, ClosedCaptions |
| Obedient Coin | video, checked |
| Strange Flame, part 2 | video, checked |
| Strange Flame, part 1 | video, checked |
| Science Friction | video, checked |
| Raw Egg or Boiled? | video, checked |
| More Science of Balance | video, checked |
| Balancing a Meter Stick | text page |
| Exploring Friction | text page |
| Review Force and Motion-4 | practice |
SC.6.P.13.3 Investigate and describe that an unbalanced force acting on an object changes its speed, or direction of motion, or both.
| Bernoulli Effect | video |
| Floating Cups | video, checked |
| Torque | video |
| Water in a Glass, part 2 | video, checked |
| Water in a Glass, part 3 | video, checked |
| Water in a Glass, part 1 | video, checked |
| Obedient Coin | video, checked |
| Wrong Way Balloon | video, checked |
| Strange Flame, part 2 | video, checked |
| Strange Flame, part 1 | video, checked |
| Science Friction | video, checked |
| More Science of Balance | video, checked |
| Science of Balance | video, checked |
| Balancing a Meter Stick | text page |
| Review Force and Motion-4 | practice |
Utah
UT.3.III.2.c Compare the relative effects of forces of different strengths on an object (e.g., strong wind affects an object differently than a breeze).
| Floating Cups | 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 |
| Newton's First Law of Motion | video, ClosedCaptions |
| Obedient Coin | video, checked |
| Wrong Way Balloon | video, checked |
| Strange Flame, part 2 | video, checked |
| Strange Flame, part 1 | video, checked |
| Raw Egg or Boiled? | video, checked |
| The Old Tablecloth Trick | video |
| Review Force and Motion-4 | practice |
UT.4.II.1.c Investigate evidence that air is a substance (e.g., takes up space, moves as wind, temperature can be measured).
| Nephoscope | video, checked |
| Air Space | video |
| Crushed Can | video, checked |
| Review Force and Motion-4 | practice |
NGSS
3-PS2-1 Plan and conduct an investigation to provide evidence of the effects of balanced and unbalanced forces on the motion of an object.
| More Science of Balance | video, checked |
| Science of Balance | video, checked |
| Force, Pressure, and Shoes | video, checked |
| Bernoulli Effect | video |
| The Slow Race | video, free, ClosedCaptions, Updated |
| Floating Cups | video, checked |
| Torque | video |
| Water in a Glass, part 2 | video, checked |
| Water in a Glass, part 3 | video, checked |
| Water in a Glass, part 1 | video, checked |
| Obedient Coin | video, checked |
| Wrong Way Balloon | video, checked |
| Strange Flame, part 2 | video, checked |
| Strange Flame, part 1 | video, checked |
| Science Friction | video, checked |
| Balancing a Meter Stick | text page |
| Review Force and Motion-4 | practice |
MS-PS2-2 Plan an investigation to provide evidence that the change in an object’s motion depends on the sum of the forces on the object and the mass of the object.
| Raw Egg or Boiled? | video, checked |
| More Science of Balance | video, checked |
| Science of Balance | video, checked |
| The Old Tablecloth Trick | video |
| Bernoulli Effect | video |
| Smoke Rings | video |
| Floating Cups | video, checked |
| The Difference Between Weight and Mass | video, checked |
| Torque | video |
| Water in a Glass, part 2 | video, checked |
| Water in a Glass, part 3 | video, checked |
| Water in a Glass, part 1 | video, checked |
| Newton's First Law of Motion | video, ClosedCaptions |
| Obedient Coin | video, checked |
| Wrong Way Balloon | video, checked |
| Strange Flame, part 2 | video, checked |
| Strange Flame, part 1 | video, checked |
| Science Friction | video, checked |
| Balancing a Meter Stick | text page |
| Review Force and Motion-1 | practice |
| Review Force and Motion-2 | practice |
| Review Force and Motion-4 | practice |
The questions are chosen randomly, so this quest will be different each time.
