Weight/Mass Definitions
What is the amount of matter or 'stuff' in an object called?
mass
Which has more gravity, the moon or Jupiter? Why?
Jupiter because it is larger.
The amount of space an object takes up is called ____________________.
volume
If you have a box and need to find out how much space it takes up, how could you do it?
LxWxH
An organism that can make it's own food?
Autotroph
What is the downward force of gravity on an object called? (Hint...it changes on different size planets)
Weight
Who was the man who studied gravity and came up with the 3 Laws of motion?
Sir Issac Newton
Explain in detail what would happen if you got in a tub filled to the very top?
It would overflow, because the water would get displaced in an amount that is equal to your weight.
If water in a graduated cylinder read 35 mL, and you dropped a rock in it which made it rise to 50 mL, what is the volume of the rock?
15 g/cm3
An organism that eats other organisms
heterotroph
What is the force of attraction between all objects called?
Gravity
Do you have more mass on earth or the moon?
neither, mass never changes
When an object is being pushed down in the water, there is a force pushing back up at it. That is ___________________.
buoyancy
Mass divided by volume equals density.
If an object has a mass of 20grams, and a volume of 10cm3, then what is the density of the object?
2 g/cm3
What is the difference between abiotic and biotic?
abiotic is non-living, and biotic means living or use to be alive
What units of measurement do you use for mass?
grams, kilograms
Do you have more weight on earth or the moon?
earth
Explain which objects will sink or float, and then answer why.
granite 2.6 ice 0.9 saltwater 1.03 blood 1.6
alcohol 0.8 gold 19.3
granite-sink, ice-float, saltwater-sink, blood-sink, alcohol-float, gold-sink
The density of water is 1 g/cm3. Anything above that will float, anything higher than that will sink.
Density multiplied by volume equals mass.
If a liquid has a density of 3 g/mL, and a volume of 20mL, then what is the mass of the liquid?
60grams
Only living things have ____________, which are the basic unit of all life.
cells
We use grams when measuring mass. Describe the difference between a milligram and a kilogram.
A milligram is 1/1000 of a gram, and a kilogram is 1000 grams.
What is the unit of measurement for weight?
Newton
Explain why a tiny steel marble will sink in water, and a styrofoam ball the size of our school will float in water.
Objects with a lower density than water will always float, and objects with a higher density than water will sink. Density is how compact the particles inside are arranged, and size doesn't matter.
Mass divided by density equals volume.
If Silver has a mass of 2000 grams, and a density of 10g/cm3, then what is the Silver's volume?
200cm3
How many kingdoms of life are there?
6