Physical Science
Is iron magnetic or nonmagnetic?
Magnetic
A tuna is an ocean fish that is well adapted to catching small, fast-moving prey. Which of the following adaptations most helps a tuna swim fast to catch its prey?
A. large fins
B. sharp teeth
C. small gills
D. tough scales
A. large fins
At the beach, Kayla notices that the sand does not dissolve in the ocean water, but the salt does. What are the terms to describe the sand and the salt?
Sand - insoluble
Salt - soluble
List the order of the planets from closest to the sun to furthest.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What is the difference between weathering, erosion, and deposition?
Weathering - breaking down rock into sediment
Erosion - movement of sediment
Deposition - where the sediment ends up
A student hears the sound of a bell. What carries the sound of the bell to the student?
Vibrations (sound waves)
Describe the process of photosynthesis.
Plants are able to make their own food using sunlight, water, and carbon dioxide and producing oxygen and glucose (sugar)
More salt water
Salt water - oceans, seas
Fresh water - rivers, lakes
Judy observed a new moon in the sky on a Tuesday evening. She will need to wait this many days until she sees the next new moon.
About a month (28 days)
Lava is molten rock that has reached Earth's surface. Magma is molten rock within Earth's surface.
If you took away heat energy from a liquid, it would become a...
Solid
What is the difference between producers, consumers, and decomposers? Give an example of each.
Producers - organisms that make their own energy through photosynthesis (plants)
Consumers - organisms that eat other organisms (rabbit, wolf)
Decomposers - organisms that break down organic matter (fungi, bacteria)
A house is currently powered by electricity from a coal-burning power plant. The owner wants to add solar panels and a small wind turbine to generate electricity for the house.
What kind of energy resource is the house's electricity currently powered by?
What kind of energy resource does the owner want to switch to?
Nonrenewable to renewable
What is the reason why we have different seasons on Earth? The answer needs to include two components.
The Earth orbits on a tilted axis.
What is the difference between a diagram and a prototype?
A diagram includes a drawing with labels. A prototype is a rough draft model.
What is the difference between repel and attract when using magnets?
Repel - two like poles facing the same way
Attract - two unlike poles (opposite) facing the same way
What is the difference between an inherited trait and an environmental trait? Give an example.
Inherited trait - passed down from parent
Environmental trait - influenced from environment
Example: Tree height can be inherited and environmental because if it is located in a shady place, it may not grow as much
What forms along the Ring of Fire? Why?
Lots of volcanoes and earthquakes because that is where a tectonic plate boundary is located.
The sun appears to move throughout the day, but it is not actually moving. Why is this?
The Earth is rotating on its axis
Invention: first car
Innovation: Tesla
What is the term for a material that allows electricity to pass through it? What's the term for a material that does not easily allow electricity to pass through it?
Conductor
Insulator
Which of the following best represents one particular stage in a life cycle?
A. a fish swimming
B. a seed sprouting
C. a leaf growing
D. a dog eating
B. a seed sprouting
What are the three types of rocks? Describe each.
Sedimentary - rocks formed in layers through cementation and compaction
Igneous - rocks from from cooled magma or lava
Metamorphic - rocks changing through heat and/or pressure
Revolution - Earth's orbit around the sun (365 days)
Rotation - Earth's spin causing day and night (24 hours)
What are the 7 steps in the water cycle? Describe them.
Condensation - water changing back from a gas to a liquid forming clouds
Precipitation - water, sleet, hail, or snow falling
Runoff - Excess water that runs off on Earth's surface
Collection/Accumulation - Water that collects into large bodies of water
Infiltration/Absorption - Water that is absorbed into the ground
Transpiration - Water that is evaporated from plants