Matter
What are the three states of matter?
Solid, Liquid, Gas
What does a plant need in order to thrive?
Water, sunlight, air
Explain the difference between predator and prey, and where they each fall on the food chain.
Predators hunt and eat other animals, prey are hunted and eaten by other animals. Prey would be at the middle and bottom of the food chain, while predators are at the top.
Explain what all 4 spheres are (for example, the hydrosphere is the system of ______)
Hydrosphere- system of water
Geosphere- system of ground/land
Biosphere- system of life
Atmosphere- system of air
Explain gravity.
Gravity is the force that pulls all objects in the universe toward one another.
Explain how the particles of each state of matter move and how that movement affects the shape of the matter.
Solid- barely move, do not change shape
Liquid- more movement, shape takes form of whatever container it is in
Gas- a lot of movement, shapes takes form of whatever container it is in
Explain how a plant creates its own food.
The plant uses air, water and sunlight to create sugar called glucose
What would happen if there were not enough resources for all of the animals living in an ecosystem?
Some might die or some might leave to find a new place to live
Give examples how each of the four earth systems interact with one another.
Answers may vary
What causes day/night and seasons to occur on Earth?
Day/night is caused by earth's rotation on its axis.
Seasons are caused by earth's revolution around the sun.
Which type of change occurs when no new matter is created? (For example, a lo is cut is into pieces, a can is crushed).
Physical change
Define the following: producer, consumer, scavenger, decomposer
-producer creates its own food (plants)
-a consumer eats other things for food (animals)
-a scavenger eats dead organisms
-a decomposer break down organisms and animal wastes back into the ground
Give two examples of how organisms can change their ecosystems.
Answers may vary
Explain the water cycle.
Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow
Explain the phases of the moon, and why we have them.
The phases of the moon are the shapes the moon appears to be in throughout the month it takes to orbit around earth.
We have them because the sun reflects light on the moon differently depending on where the moon is in its orbit.
Which type of change occurs when new matter is formed? (For example, wood is burned to ashes).
Chemical change
How do consumers get energy? What types of things do consumers use that energy for?
They get energy by eating. They use the energy for growth, repair, and everyday life processes
Explain what an invasive species is, and how they can be negative to ecosystems.
Invasive species is an introduced species that is better able to compete for resources than the existing species in the ecosystem.
How much of the water on earth is fresh water, and where is it found on earth?
3 percent
found in ice caps/glaciers, groundwater, and surface water (i.e. lakes)
Why do we see different stars in the sky depending on the season?
Earth is in different spots in its revolution around the sun
Explain the conservation of matter.
The amount of matter stays the same when going through a physical or chemical change
Create an example of a food chain, and explain the difference between a food chain and a food web.
Example- grass, rabbit, owls
A food web is just one part of a food chain.
What is the difference between a wide and narrow niche?
A wide niche is when an animal can live in different places, eat many foods, and be part of many different ecosystems. A narrow niche is when an animal can only live in specific places and eat specific foods.
Explain the difference between a renewable and non-renewable resource, AND give an example of each.
Renewable resources are resources that can continuously be replenished after use.
Nonrenewable resources can not be replaced after they are used up.
Examples may vary.
The sun is a star that is the center of our universe.
It appears so large and bright in the sky because of its distance from earth.