Show:
Insects
Watersheds
Forces
Simple Machines
Miscelaneous
100
What covers and protects and insect?
The exoskeleton
100
Which direction does water always flow?
Downhill
100
Define "force"
A push or a pull
100
Our arms and legs are examples of what simple machine?
Levers
100
What is a leaf pack?
A bunch of leaves gathered in water where insects live.
200
What is the larval stage of a darkling beetle called?
Mealworm
200
What kind of map shows the elevation (or highs and lows) of the land?
A topographic map
200
The name of the force that pulls objects towards the ground.
Gravity
200
An inclined plane reduces the force you need when it is ________
Longer, or less steep.
200
How can leaf packs help us study water quality?
Find out what insects live in the leaf pack. Some insects can live in polluted water, some cannot.
300
Name the life cycle stages of the Madagascar hissing cockroach.
Egg --> Nymph ---> Adult
300
What are the elevation (or height) lines called on maps?
Contour lines
300
The name of the force that results when two objects rub together.
Friction
300
In a gear train, the input force is called the ________, and the output force is called the __________.
Driver and follower
300
What is the sharp mouth part of a squid called?
The beak.
400
Name the three body parts of an insect, in order from front to back.
Head --> Thorax --> Abdomen
400
What is the name of the part of a river that opens into an ocean or bay?
The mouth of the river.
400
When dropped from the same height, which would fall faster: A basketball made out of foam, or a basketball made out of stone?
They would fall at the same speed.
400
A wheel requires less input force when
it is larger.
400
How often does the about-to-emerge brood of cicadas emerge?
Every 17 years.
500
What is the word that describes the process of insects changing through their life-cycle stages?
Metamorphosis
500
What is a body of water called that saved and cleaned to provide drinking water for a city or town?
A resevoir
500
Name the 3 sources of friction that acted on our index card cars.
Friction between the marble and the ground Friction between the car and the ground Friction between the marble and car
500
When using a lever, the input force needed is less when the fulcrum is ________________
closer to the load.
500
Name 3 important steps in conducting any experiment
Making a prediction Gathering materials Doing the experiment Writing down the data Drawing a conclusion