Is the following statement an observation or an inference? If I squeeze the sponge water will probably drip out.
INFERENCE: this is a conclusion based on prior knowledge and observations.
What heat transfer happens through the circulation of warm and cold?
convection
Is the following statement an inference or observation? The mass of the object is 56g.
It is an observation (quantitative Observation) because it is a FACT based on measurement.
If molecules are far apart and moving really quickly is the substance a solid, liquid, or gas?
Gas - because gases have the most heat energy which in turn make the molecules have the most kinetic energy and move fast.
True or False: if the volume of the water in a graduated cylinder is 35 mL and after dropping a rock in rises to 38 mL, the volume of the rock is 3 mL/cm3.
TRUE: Through water displacement you can find the volume of a solid. subtract the volume of the water before the object from the volume of the water after the object is dropped in.
How can you increase an objects potential energy?
By raising the object higher.
In the following experiment name 1 variable and 2 constants:
Jordan wants to know how different wheels are going to affect the speed of a toy car. She tests the same car with three different wheels down the same course. In the end the one with the thickest wheels when the slowest and the one with the thinnest wheels went the fastest.
variable - different wheels, speed of car
constants - same car, same course
What process does the mitochondria go through?
Respiration-oxygen +food = carbon dioxide +water +energy
What is the job/function of the roots?
absorbs water and nutrients, anchors a plant in place, can store food in winter.
If a person was running on a road and then started to run through tall grass, do you think it would increase or decrease the person's kinetic energy?
Decrease the kinetic energy because the tall grass would probably slow the person down as they were running through it. If you decrease speed you decrease kientic energy.
If a triple beam balance is on 200 on the middle beam, 40 on the back beam, and 6 plus 3 spaces past 6. What is the mass?
246.3 g
As you move down a hill on your bike explain what happens to kinetic and potential energy.
The kinetic energy increases while the potential energy decreases.