Food Chains and Food Webs
All of the energy in an ecosystem comes from where?
The Sun.
What is energy called that must travel in a complete circuit?
Electricity.
What is force?
A push or a pull.
What is it called when land is broken down slowly over time by nature?
weathering/erosion
What does it mean to "inherit" something?
It is passed on to you by your parents.
How is energy used by animals?
To grow, repair/heal, move around.
The circular path electricity must travel in.
Circuit.
What type of force is needed for an object to move?
unbalanced force.
Where are most of Earth's earthquakes and volcanoes?
Along the edges of tectonic plates.
Why do some animals have flat teeth?
Because they are herbivores/eat plants.
How is energy used by plants?
To grow, grow fruit/vegetables, to repair.
What is the purpose of a switch in a circuit.
To turn the circuit "on/off" by opening and closing the circuit.
What type of force causes an object to stay in place?
balanced force
In a model of erosion, what can we measure?
How much soil "erodes" or moves by water flow or other weather events.
What trait helps animals blend in with their environment?
If they are the same color as their environment or "camoflauge."
What does a food web show?
The flow of energy in an ecosystem.
A toaster toasts a piece of bread. What kind of energy goes into the toaster? What kind of energy comes out?
Electricity enters the toaster through the wire. This electricity is converted into heat energy and warms up the toast.
A ball rolling downhill is an example of what type of force?
unbalanced force
How can flowing water change land?
It can cause grooves to form in rock, or break it down into tiny pieces slowly over time.
Tigers have long sharp claws for catching their prey. Where did they inherit this trait?
Their parents.
What is the difference between a food web and a food chain.
A food web shows a set of connected food chains.
Draw or describe how you would build a circuit using these tools: lightbulb, wire, battery, switch.
Use the wire to connect the battery to the lightbulb, with a switch halfway to the lightbulb on one of the wires.
A ball sitting in place is an example of what type of force?
balanced force
Describe how you would model erosion using the following: grass, soil, water, a scale.
Weigh the amount of soil that is moved by varying amounts of water, depending on how much grass is planted.
Where did giraffes inherit their long necks and spots?
Their parents.