Web of Life
What do you call a diagram that shows how energy moves from plants to animals to other animals?
Food web (or food chain): correct answer: food web for diagram showing many interconnected feeding relationships.
What is the process called when water vapor cools and turns into liquid water (forming clouds)?
Condensation
Are days longer in the winter or summer?
Summer
What is the name of the star at the center of our solar system?
The Sun.
What is one sign that a chemical reaction has taken place (look for change)?
Signs: color change, temperature change, gas/bubbles, precipitate forms, light emitted.
Name two kinds of organisms that break down dead plants and animals and return nutrients to the soil.
Fungi and bacteria (also decomposers like earthworms).
Name the largest reservoir of Earth's freshwater and one way humans use it.
Ice caps/glaciers or groundwater (aquifers). Humans use freshwater for drinking, farming, industry
Why do you only see some constellations during certain months?
Because of the earth's orbit around the sun
Which planet is known for its rings?
Saturn
When two substances are mixed and produce bubbles (gas), what does that often indicate?
It often indicates a gas is being produced (a chemical reaction releasing gas).
Give one example of how a change (like adding a new animal) can harm an ecosystem’s balance.
Example: Introducing a predator reduces prey numbers, harming plants that depended on those prey to spread seeds; or invasive species outcompete native species.
What causes ocean tides on Earth?
Tides are caused mainly by the gravitational pull of the moon and, to a lesser extent, the sun.
Why are the days longer in the summer?
Because the sun is higher in the sky
Why does the sun look brighter than other stars? (Give the scientific reason.)
Because the sun is much closer to Earth than other stars, it appears brighter and larger.
In our coin lab why couldn't we see the brown stuff on the coin come off when we put it in the salt and vinegar.
Because the broke down in to very tiny pieces.
Explain what a food web is and how it is different from a food chain.
Food chain: single path of energy (e.g., grass → rabbit → fox). Food web: many interconnected chains showing multiple feeding relationships.
What are the stages of the water cycle?
Condensation, Evaporation, Precipitation.
Why is your shadow longer in the winter?
Because the sun is lower in the sky.
Explain why we have day and night on Earth.
Earth rotates on its axis; the side facing the sun has daylight, the opposite side is night.
what happens to particles when they gain energy?
The speed up.
Describe three interactions among the biosphere, atmosphere, hydrosphere, and geosphere that help support life.
Examples: Plants take CO2 from atmosphere (biosphere–atmosphere); ocean circulation moves nutrients (hydrosphere–biosphere); plate tectonics change soil and landforms (geosphere–biosphere).
Describe how pollution in one part of the water cycle can affect living things far away. Think about runoff.
Example: Chemical runoff into a river can kill fish downstream and contaminate drinking water far away.
Is your shadow longer in the summer or winter?
Winter.
How many days does it take for the moon to go from a full moon to a new moon?
14 days
What do particles look like when they are part of a solid material.
Close together and vibrating.