Scientific Method/Equipment
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 do all living things have?
A CELL or CELLS.
What are organisms that consume WASTE called?
decomposers
What heat transfer happens through the circulation of warm and cold?
convection
What is evaporation?
when water is heated and it changes from a liquid to a gas (water vapor).
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.
True or False: A chipmunk and an apple tree are in the same kingdom and different class.
False: A chipmunk is in the animal kingdom and an apple tree is in the plant kingdom. If organisms are not in the same kingdom then they will not be in the same, phylum, class, order family, genus, or species. DIFFERENT KINGDOM and DIFFERENT CLASS.
What is a producer?
anything that makes its own FOOD.
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.
What is the difference between a hurricane and a tornado?
A tornado occurs OVER LAND and usually travels in a NARROW PATH while hurricanes form OVER WATER and have a WIDE PATH of destruction.
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 or 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.
What is the protective outer layer of a plant cell called?
Cell wall
True or False: a mushroom and a plant are in the same kingdom.
False: A mushroom is in the Fungi kingdom.
How can you increase an object's potential energy?
By raising the object higher or increasing its mass.
When clouds form, what process has occurred?
CONDENSATION - water vapor cools and turns back into liquid water. Clouds are little drops of water.
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.
What kind of weather always occurs at a warm or cold front?
CLOUDY SKIES AND PRECIPITATION - due to low pressure.
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
Name 2 parts a plant cell has that an animal cell doesn't.
cell wall, Chloroplast, larger vacuole.
What is the energy source in the process of photosynthesis?
The SUN - leaves take in Carbon dioxide + sunlight + water to make and release sugar (food) and oxygen.
Explain what happens to kinetic and potential energy as you move down a hill on your bike.
The kinetic energy increases while the potential energy decreases.
What way does weather move across the United States?
West to East