Nature of Science
What tool do scientists use to look at things that are too small to see with just their eyes?
Microscope
In what type of rock can fossils be found?
Sedimentary
What is the name of our home galaxy?
Milky Way
Is crumpling a piece of aluminum foil an example of a physical change or chemical change?
Physical Change
What are the stages of the life cycle of a dragon fly? (incomplete Metamorphosis)
A. egg, larva, pupa, adult
B. adult, egg, Nymph
C. egg, larva, nymph, adult
D. egg, Nymph, Adult
D. egg, nymph adult
Why do scientists write down and share what they find in experiments?
So others can learn from it, repeat the experiment, and check if the results are correct.
What type of rock is formed by heat and pressure?
Metamorphic
How many stars are in our Solar System?
One
Is melting ice a physical change or a chemical change?
Physical- water is still water in all three states
Ferns and mosses are non-flowering. How do they reproduce?
Spores
Why is it important for scientists to ask questions before starting an investigation?
Asking questions helps scientists focus on what they want to learn and plan their investigation. It guides what they will observe, measure, and test.
What is one way you can tell the difference between a rock and a mineral?
A mineral is made of only one substance while a rock is made of two or more minerals.
Why do we have day and night?
Because Earth spins (rotates) on its axis.
What are three states of matter you can see in the Water Cycle?
solid, liquid, and gas
Why do animals have different types of teeth?
Different teeth help animals eat different kinds of food. sharp teeth for carnivores that tear meat, and flat teeth for grinding plants.
Two scientists do the same experiment but get different results. What should they do next?
They should compare methods, check for mistakes, and repeat the experiment.
How are igneous rocks formed?
When melted rock (magma/lava) cools and hardens.
What causes the Moon to appear to change shape during the month?
The moons shape seems to change because of how the Sun lights it as the Moon orbits Earth.
You mix two clear liquids and notice bubbles and heat are produced. What kind of change is happening?
Bubbles and heat are signs of a Chemical Change
What is the name of the trait that helps an animal live in its environment. For example, a polar bear's thick fur keeps it warm in the cold.
Adaptation
A control group shows what happens without the new plant food, so scientists can compare results.
A student finds a shiny, gold colored mineral and thinks it's real gold. Name at least two properties the student could use to help identify the mineral.
Streak, Hardness, Luster, Cleavage
If Earth were not tilted on its axis, how would our seasons be different, and why?
We wouldn't have different seasons. Each part of Earth would get the same amount of sunlight all year so temperatures would stay more the same instead of changing from winter to summer
What is the difference between a physical change and a chemical change?
A physical change changes the way something looks but not what it is (cutting paper). A chemical change makes a new substance (baking a cake).
stomach, mouth, large intestine, small intestine,
Mouth
Stomach
Small Intestine
Large Intestine