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 of the following is likely a sign that it will rain soon?
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Rising temperatureNo. A warm air mass moving into your area might bring rain, but it also might bring sunny weather. Rising temperature by itself is not a good indicator of rain.
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Decreasing humidityNo. The humidity at ground level does not play much of a role in the formation of rain in the clouds. Just before it rains, the precipitation could cause the humidity to increase, but it would not cause it to decrease.
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Wind out of the westNo. Any weather front moving in from the west could cause winds, even if it was bringing clear, sunny weather.
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Falling barometric pressureYes! Low pressure fronts are commonly associated with rain and storms, so falling barometric pressure is a good indicator that rain may be on the way.
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.7.3 Recognize how air temperature, barometric pressure, humidity, wind speed and direction, and precipitation determine the weather in a particular place and time.
| Nephoscope | video, checked | 
| Building a Rain Gauge, part 2 | video, checked | 
| Building a Rain Gauge, part 1 | video, checked | 
| Pine Cone Weather | text page, free | 
| Review Weather-5 | practice | 
| Review Weather-4 | practice | 
Utah
UT.4.II.3.a Identify and use the tools of a meteorologist (e.g., measure rainfall using rain gauge, measure air pressure using barometer, measure temperature using a thermometer).
| Nephoscope | video, checked | 
| Building a Rain Gauge, part 2 | video, checked | 
| Building a Rain Gauge, part 1 | video, checked | 
| Pine Cone Weather | text page, free | 
| Review Weather-4 | 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-5 | practice | 
| Review Weather-6 | practice | 
| Review Weather-4 | practice | 
| Review Weather-3 | practice | 
| Review Space-5 | practice | 
| Review Space-8 | 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 | 

Cannonball Jelly fish are excellent swimmers, and Portly Spider Crabs often hitch a ride on them. What type of relationship is that?
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mutualismNo. In mutualism, both organisms benefit. The jellyfish gets no benefit from the crab's hitchhiking.
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commensalismYes. In commensalism, one organism (the crab) benefits, and the other (jellyfish) is not affected. The crab gets free transportation, and the jellyfish is not helped or harmed.
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parasitismNo. For parasitism, one organism benefits, and the other is harmed. Neither the crab nor the jellyfish is harmed by this relationship.
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predationNo. In predation, one organism eats another. Neither the crab nor the jellyfish gets eaten in this relationship.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.7.L.17.2 Compare and contrast the relationships among organisms such as mutualism, predation, parasitism, competition, and commensalism.
| Secondary Consumers | video, free, ClosedCaptions, Updated, checked | 
| Review Food Web-11 | practice | 
| Review Food Web-12 | 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
MS-LS2-2 Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.
| A Walk in the Park | video, checked | 
| Review Food Web-11 | practice | 
| Review Food Web-12 | practice | 

You have probably seen patterns of light like this in a pool of water. What causes it?
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AbsorptionNo. If the light was being absorbed, the pattern would be dark instead of bright.
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DiffusionNo. Diffusion is the scattering of light as it is reflected in many different directions. Diffusion would make the entire area brighter, not a specific pattern.
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ReflectionNo. While the light has to reflect back to your eye for you to see it, reflection does not cause this pattern.
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RefractionYes! Refraction bends light. Waves and ripples on the surface of the water act just like the curved surface of a lens. This bends the light into patterns that have shapes similar to the ripples on the water's surface.
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 | 
| 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 | 
| 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.
| About Microwaves | video, checked | 
| Microwave Chocolate | video, checked | 
| 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 | 
| 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.
| About Microwaves | video, checked | 
| Microwave Chocolate | video, checked | 
| 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 | 
| 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 | 

Baking a cake is an example of:
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A physical changePartly right. Some of the changes involved in baking a cake are physical changes.
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A chemical changePartly right. Some of the changes involved in baking a cake are chemical changes.
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BothYes! The process of baking a cake involves many changes. Some, such as water evaporating and sugar melting are physical changes. Others, such as baking powder reacting cause a change in the chemical formulas, indicating a chemical change. For more on this, read Changing How We Look at Changing
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NeitherNo. There are many changes involved in baking a cake.
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.9.1 Investigate and describe that many physical and chemical changes are affected by temperature.
| The Chemistry of Milk | video, ClosedCaptions, checked | 
| Why Wet Things Don't Burn | video, checked | 
| Igneous Sugar | video, checked | 
| Changing How We Look at Changing | text page, free | 
| Growing Crystals from Solution | text page, checked | 
| Review Matter-4 | practice | 
SC.8.P.9.2 Differentiate between physical changes and chemical changes.
| Polymers and Slime | video, free, ClosedCaptions, checked | 
| Silver Pictures | video, checked | 
| Chemical and Physical Changes | video, ClosedCaptions, checked | 
| Changing Colors, part 1 | video | 
| Changing Colors, part 2 | video | 
| Making Butter | video, free, ClosedCaptions, Updated | 
| Changing How We Look at Changing | text page, free | 
| Review Matter-4 | practice | 
Utah
UT.5.I.3.d Compare a physical change to a chemical change.
| Changing Colors, part 1 | video | 
| Changing Colors, part 2 | video | 
| The Chemistry of Milk | video, ClosedCaptions, checked | 
| Making Butter | video, free, ClosedCaptions, Updated | 
| Chemical and Physical Changes | video, ClosedCaptions, checked | 
| Paper Petals | video, ClosedCaptions | 
| Changing How We Look at Changing | text page, free | 
| Review Matter-4 | practice | 
UT.8.I.1.a Differentiate between chemical and physical properties.
| Cabbage Indicator | video, checked | 
| Making Butter | video, free, ClosedCaptions, Updated | 
| Making Turmeric Paper | video, checked | 
| Testing for Tannic Acid | video | 
| Chemical and Physical Changes | video, ClosedCaptions, checked | 
| Paper Petals | video, ClosedCaptions | 
| Review Matter-4 | practice | 
NGSS
2-PS1-4 Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.
| The Chemistry of Milk | video, ClosedCaptions, checked | 
| A Watched Pot | video | 
| Why We Sweat | video, checked | 
| Photographing Snowflakes | video, checked | 
| Ice Cream Science | video, checked | 
| A Hot Change | text page | 
| Review Matter-4 | practice | 
MS-PS1-2 Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
| Silver Pictures | video, checked | 
| Science and the Haunted Pumpkin | video, free, checked | 
| Making Turmeric Paper | video, checked | 
| Testing for Tannic Acid | video | 
| Relighting Candles | video, checked | 
| Catalysts | video, ClosedCaptions, checked | 
| Changing Colors, part 1 | video | 
| Changing Colors, part 2 | video | 
| Chemical and Physical Changes | video, ClosedCaptions, checked | 
| The Chemistry of Milk | video, ClosedCaptions, checked | 
| How They Get the Sparks in a Sparkler | video | 
| Orange Flash | video | 
| Candles in a Jar, part 2 | video, ClosedCaptions, checked | 
| Candles in a Jar, part 1 | video, ClosedCaptions, checked | 
| Cabbage Indicator | video, checked | 
| Polymers and Slime | video, free, ClosedCaptions, checked | 
| Changing How We Look at Changing | text page, free | 
| A Hot Change | text page | 
| Review Matter-4 | practice | 

Notice that the very back point on this Mule Deer's antlers is split. This is a genetic trait which is becoming more and more common because hunters would rather shoot deer with perfect antlers. This is an example of:
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why hunting deer is a bad idea.No. Actually, deer hunting is very important. Because we have killed off many of their natural predators, if hunters did not control their population, large numbers of them would starve to death.
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an adaptation that improves an organism's chance for survival.Yes. Because hunters are less likely to shoot it, this deer is more likely to survive long enough to reproduce, passing this trait on to its offspring.
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an acquired trait.No. This is a genetic trait, not an acquired trait.
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why antlers are more useful than horns.No. Antlers and horns serve different functions, but both are useful to the animal that has them.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.5.L.15.1 Describe how, when the environment changes, differences between individuals allow some plants and animals to survive and reproduce while others die or move to new locations.
| Who Evolved on First? | text page, free, checked | 
| Review Adaptation-1 | practice | 
| Review Adaptation-5 | practice | 
| Review Adaptation-6 | practice | 
SC.7.L.15.2 Explore the scientific theory of evolution by recognizing and explaining ways in which genetic variation and environmental factors contribute to evolution by natural selection and diversity of organisms.
| Who Evolved on First? | text page, free, checked | 
| Review Adaptation-1 | practice | 
Utah
UT.5.V.2.c Describe how a particular physical attribute may provide an advantage for survival in one environment but not in another (e.g., heavy fur in arctic climates keep animals warm whereas in hot desert climates it would cause overheating; flippers on such animals as sea lions and seals provide excellent swimming structures in the water but become clumsy and awkward on land; cacti retain the right amount of water in arid regions but would develop root rot in a more temperate region; fish gills have the ability to absorb oxygen in water but not on land).
| Review Adaptation-1 | practice | 
| Review Adaptation-5 | practice | 
| Review Adaptation-6 | practice | 
UT.7.IV.2.a Predict why certain traits (e.g., structure of teeth, body structure, coloration) are more likely to offer an advantage for survival of an organism.
| Selective Smelling | video, checked | 
| Onion Crystals | video | 
| Who Evolved on First? | text page, free, checked | 
| Thoughts on an Exoskeleton | text page, free | 
| Review Adaptation-1 | practice | 
| Review Adaptation-2 | practice | 
| Review Adaptation-5 | practice | 
| Review Adaptation-6 | practice | 
NGSS
3-LS4-2 Use evidence to construct an explanation for how the variations in characteristics among individuals of the same species may provide advantages in surviving, finding mates, and reproducing.
| Flowers | video, ClosedCaptions | 
| Who Evolved on First? | text page, free, checked | 
| Review Adaptation-1 | practice | 
| Review Adaptation-3 | practice | 
| Review Adaptation-4 | practice | 
| Review Adaptation-5 | practice | 
| Review Adaptation-6 | practice | 
The questions are chosen randomly, so this quest will be different each time.
