Force and Motion and Energy
True of False:
You can only change one thing in an investigation.
True
What is density?
Sink or float
Evaporation, condensation, precipitation and run-off are major parts of this global process.
The Water Cycle.
Organisms that make their own food.
Producers.
What is an independent variable?
Name one metals that is NOT magnetic
Cooper
This is what Earth spins on.
Its axis.
Organisms that eat other organisms.
Consumers.
What is responsible for things falling?
Gravity
Salt and water is a __________.
solution
What are the three fossil fuels?
Coal, oil, natural gas
Where do producers get energy?
The Sun
Jonathan pulls his chair out to sit down. Is that an example of a balanced or unbalanced force?
Unbalanced
Trail mix is an example of this.
A mixture.
The shadow at noon is __________.
Shorter
Organisms that break down dead organic material.
Decomposers.
Light travels in a _________.
straight line
What is physical state?
solid, liquid, gas
Finish the process of the formation of sedimentary rocks:
Weathering, Erosion, Deposition, _______, _______
Compaction, Cementation
Which of the following is a biotic resource of an ecosystem? (a) Sun (b) Water (c) Tree (d) Rock
c. Tree
What stops a ball rolling on a carpet?
friction
What tool can I use to separate iron fillings and sand?
Magnet
The sun appears to move from ______ to ______
East to West
What does structure mean?
Part of an organism
Another word for heat is ________.
thermal
All ______ are conductors.
metals
Where was coal formed?
Swamp
Biotic things are:
a. Living b. Non- Living c. Natural things
d. Sand
a. Living
A straw looks broken in a cup of water. This is an example of __________.
Refraction
For an electric circuit to work, it needs to be _______.
closed
How long does it take Earth to do a full rotation?
24 hours
What adaptation helps the bears survive in the winter?
Hibernation
What material is an insulator?
Paper, plastic, rubber, styrofoam
Energy flows from the _______ side of the battery.
negative
Deposition
What adaptation helps the jackrabbit survive in the dessert?
Big Ears - Cools down
Fur color - Camouflage
If a student puts a motor in an electric circuit, energy transforms from electrical energy to ________.
mechanical
If i mix 20 g of sugar and 100 ml of water, what will be the total mass of the solution?
120 ml
What agent of change is responsible for the U- Shaped Valley?
Ice
What is the function of the spikes in cactus?
Protection