Ecosystems
What do the arrows in a food chain represent?
The flow of energy
What is a conductor?
A material that easily allows heat to flow through it.
The stage of the water cycle where water droplets become heavy and fall from clouds.
Precipitation
Fill in the blank:
An object with greater mass require _____ force to stop.
more
Wings, feathers, beak, eye color, etc.
Water that is a mixture of salt and fresh water.
Brackish water
Jaime is making pancakes and mixes 50 grams of sugar, 100 grams of flour, and 150 grams of water in a bowl. What is the total weight of the mixture?
300 grams
Why are temperatures in Wilmington warmer than Charlotte throughout the year.
Because of the Gulf Stream
Which surface cause the least amount of friction when kicking a soccer ball?
Tile floor, concrete, grass, or carpet
Tile floor
Which body system is responsible for allowing movement, maintaining posture, and generating heat?
Muscular system
This is a food chain in a lake ecosystem.
Plankton → Minnow → Bass → Osprey
How are the minnow and osprey effected if the bass population decreases?
The minnow population would increase while the osprey population decreases.
Finish the sentence:
Air particles lose energy and move closer together when ______.
Cooled
Sea breeze; Day
Which line represents an object returning to its starting position?
a) _
b) /
c) \
d) |
Which body system contains the heart and blood vessels?
Name a consumer in a rainforest ecosystem.
Monkey, snake, jaguar, toucan
A jar contains 10 marbles that weigh 100 grams and sand that weighs 200 grams. The total weight of the jar, marbles, and sand is 500 grams. What is the weight of the empty jar?
200 grams
Warmer and very humid
Fill in the blank:
Gravity is a force that ____ (pushes/pulls) objects ____ (up/down).
pulls; down
Name organizational structure of humans from smallest to biggest.
Cell, tissue, organ, organ system, organism
Does the description below describe a freshwater or saltwater ecosystem?
- Body of water surrounded by land.
- You can find ducks, beavers, and frogs here.
Freshwater
Two houses were heated to 75 F and left for two hours. After the two hours, House A was 64 F and House B was 68 F. Which house is the better insulator? Why?
House B because it kept in the most heat or lost the least amount of heat.
Why are polar regions colder than equator regions?
Polar regions receive less direct sunlight (answer must contain direct sunlight)
a) /
b) _
c) |
d) \
b) _
Someone being able to do a back flip is a what?
Learned behavior