Test Your Science Knowledge

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.

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I wanted to test different amounts of fertilizer to see which was best for growing grass. I mixed water with different amounts of fertilizer, and then added sodium polyacrylate to change it into a gel. Then I sprinkled the grass seeds on top, and waited for them to grow.

I really need a control group for this experiment. What would I use for a control?

  1. Water, fertilizer, and grass seed, without any sodium polyacrylate.

    No. For the control, we want to skip the thing we are testing for. We are not testing changes caused by the amount of sodium polyacrylate.
  2. Water, sodium polyacrylate, and grass seed, without any fertilizer.

    Yes! We are testing to see how different amounts of fertilizer change the growth of the grass. The amount of fertilizer is the variable we are testing, so the control group should not have any fertilizer.
  3. Water, sodium polyacrylate, and fertilizer, without any grass seed.

    No. For the control, we want to skip the thing we are testing for. We are not testing changes caused by the amount of grass seed, and we know that no grass will grow if we do not have any seeds.
  4. Sodium polyacrylate, fertilizer, and grass seed, without any water.

    No. For the control, we want to skip the thing we are testing for. We are not testing changes caused by the amount of water.



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.

SC.7.N.1.4 Identify test variables (independent variables) and outcome variables (dependent variables) in an experiment.

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.

This is called Marble. It was once limestone, but heat and pressure changed it, recrystallizing the calcite and distorting the layers. What kind of rock is it?.

  1. Igneous

    No. Igneous rocks formed from magma or lava. This is not an igneous rock.
  2. Sedimentary

    No. Sedimentary rocks are deposited by wind, water, ice, or gravity, and they often contain fossils. When it was limestone it was a sedimentary rock, but not now.
  3. Metamorphic

    Yes!. This marble been changed by heat and pressure from a different kind of rock. It is metamorphic.
  4. Marble is not a rock.

    No. Marble is a naturally occurring solid that forms large layers in the Earth. Marble 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
Igneous Rocks and Bubbles video, learnalong
Sedimentary Rocks video, learnalong
What is a Rock? video, learnalong
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-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
Review Rocks-5 practice
Review Rocks-6 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
What is a Rock? video, learnalong
The Rock Cycle video, learnalong
Change: Fast and Slow video
Erosion video
Continuous Change video
Bioclastics: Rocks With No Minerals video
Weathering and Erosion video, learnalong
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 Erosion-6 practice
Review Rocks-5 practice
Review Rocks-6 practice
Review Rocks-8 practice
Review Rocks-9 practice

Utah


UT.4.III.1.a Describe the differences between minerals and rocks.

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.

MS-ESS2-1 Develop a model to describe the cycling of Earth’s materials and the flow of energy that drives this process.
Definition of a Mineral video
Evaporites video, learnalong
Igneous Rocks and Bubbles video, learnalong
What is a Mineral? video
Identifying Minerals video, learnalong
Sedimentary Rocks video, learnalong
What is a Rock? video, learnalong
The Rock Cycle video, learnalong
Bioclastics: Rocks With No Minerals video
Light and Dark Minerals text page, learnalong
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
Review Rocks-5 practice
Review Rocks-6 practice
Review Rocks-8 practice
Review Rocks-9 practice

Which part of your body comes closest to serving the same function as a flower?

  1. Sensory organs

    No. Plants can sense their surrounds just as well without flowers.
  2. Reproductive organs

    Yes! Flowers are the reproductive organs of the plant. While most animals are either male or female, most flowers have both male (stamen) and female (pistil) reproductive organs. In this photograph, the male stamens are the green stalks with the yellow ends. The female pistil is the white structure just below the stamens.
  3. Digestive system

    No. Plants make their own food, so they do not need a digestive system.
  4. Skeletal system

    No. The stiff cell wall of a plant cell serves the same function as our skeleton.



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
Pumpkin Guts video, ClosedCaptions
Measuring Photosynthesis video
Seed Search video, ClosedCaptions
Orange Slices video, ClosedCaptions
Testing a Leaf for Starch video, ClosedCaptions
Flowers video, ClosedCaptions
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.4.L.16.1 Identify processes of sexual reproduction in flowering plants, including pollination, fertilization (seed production), seed dispersal, and germination.
Pumpkin Guts video, ClosedCaptions
Seed Search video, ClosedCaptions
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

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.
Bird Bones video
Reading a Skeleton video
Orange Slices video, ClosedCaptions
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).

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).
Hunting with an Umbrella video, free, ClosedCaptions
Bendable Bones video
Calling a Woodpecker video
Selective Smelling video
Seed Search video, ClosedCaptions
Orange Slices video, ClosedCaptions
Flowers video, ClosedCaptions
Onion Crystals video
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 Hay Infusion video, free, learnalong
Microscopes: Making a Wet Mount video, learnalong
Microscopes: Making a Dry Mount video, learnalong
901 photo challenge, free

This is Kalanchoe daigremontiana, also known as Devil's Backbone or Mother of Thousands. Each of the tiny bumps on its leaves is a developing, new plant. When they are mature enough, they will separate from the parent plant, fall to the ground, and take root. This plant reproduces both asexually with its leaves, and sexually with its flowers. What is the advantage of sexual reproduction?

  1. Sexual reproduction is faster.

    No. Asexual reproduction using its leaves is actually faster than sexual reproduction, and allows the plant to produce more offspring.
  2. Sexual reproduction lets the plant produce more offspring.

    No. This plant produces more offspring by asexual reproduction than it does by seeds.
  3. Sexual reproduction prevents the plant from passing on harmful mutations.

    No. Both sexual and asexual reproduction can pass a mutation on to the offspring.
  4. Sexual reproduction gives the offspring genes from both parents.

    Yes! The main advantage of sexual reproduction is that the offspring gets half of its genetic material from each parent. This plant can reproduce asexually by producing the new, tiny plants on its leaves, but they are genetically the same as the parent. A disease or parasite which was fatal to one would be fatal to all. When it reproduces by flowers and seeds, half of the genetic material comes from the plant, and half comes from the pollen that fertilized seed. This produces offspring that have genetic variations, giving them a better chance of surviving. The survivors can then reproduce asexually to produce thousands of new plants with those traits.



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
Pumpkin Guts video, ClosedCaptions
Measuring Photosynthesis video
Seed Search video, ClosedCaptions
Orange Slices video, ClosedCaptions
Testing a Leaf for Starch video, ClosedCaptions
Flowers video, ClosedCaptions
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.4.L.16.1 Identify processes of sexual reproduction in flowering plants, including pollination, fertilization (seed production), seed dispersal, and germination.
Pumpkin Guts video, ClosedCaptions
Seed Search video, ClosedCaptions
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

SC.7.L.16.3 Compare and contrast the general processes of sexual reproduction requiring meiosis and asexual reproduction requiring mitosis.
Review Plants-3 practice

Utah


UT.7.IV.1.b Contrast the exchange of genetic information in sexual and asexual reproduction (e.g., number of parents, variation of genetic material).

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.
Bird Bones video
Feathers video
Heartless Plants video, ClosedCaptions
Nature Watching video
Calling a Woodpecker video
Pumpkin Guts video, ClosedCaptions
Seed Search video, ClosedCaptions
Orange Slices video, ClosedCaptions
How Does a Butterfly Fly? text page, free
Thoughts on an Exoskeleton text page, free
Eye Shine text page
Review Plants-3 practice
Review Plants-1 practice
Review Plants-5 practice
Review Plants-6 practice
Review Plants-7 practice
Review Plants-8 practice

MS-LS4-4 Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals’ probability of surviving and reproducing in a specific environment.

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.

When water freezes into ice, its volume increases. What happens to its mass?

  1. It increases.

    No. When water freezes, it takes up more space, but the mass stays the same.
  2. 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.
  3. It decreases.

    No. The mass stays the same, even when the water freezes.
  4. 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.

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


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
Review Matter-2 practice
Review Matter-6 practice

Utah


UT.5.I.1.b Compare the weight of a specified quantity of matter before and after it undergoes melting or freezing.

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.
Making Butter video, free, ClosedCaptions
The Difference Between Weight and Mass video
Ice Cream Science video
Chemical and Physical Changes video, ClosedCaptions
Air has Weight text page
Review Matter-2 practice
Review Matter-6 practice

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?



See which questions, videos, experiments, and other resources support each of your local science standards.