Matter
Volume
Mass
Density
Physical or Chemical?
100
What is Matter? (You just have to get this right!)
Matter is anything that has mass and takes up space.
100
How do you call the curve at a liquid's surface by which one measures the volume of the liquid?
The meniscus.
100
if the two objects take up the same space but one has more _______ in it, then the mass will be greater
Matter
100
What is the density of water?
1.00 g/cm3
100
Grass is growing. Is that a chemical or physical change? Defend your answer.
It is a chemical change since you can't undo the growing cycle and turn grass back into a seed.
200
What are two major categories of matter?
Mixtures and substances
200
What does cubic mean?
having three dimensions
200
What is mass
Amount of matter in an object
200
Which would you rather carry around all day: a kilogram of lead or kilogram of feather?
A kilogram of lead
200
What are 2 examples of chemical properties?
Reactivity and Flammability
300
What did Archimedes do to see if the king's crown is completely made of gold?
He did the water displacement method
300
If the mass of a boat is 516.215 grams and the density of the boat is 214.86 g/mL, then what's the boat's volume?
The volume is about 2.4025644606 mL, or 2.4 mL if you round up.
300
Mass is a measure of ________
Inertia
300
What will be the density of an object whose mass is 75 grams and whose volume is 63mL? Will the object float or sink?
1.1904 grams/mL. The object will sink.
300
Which substance has the chemical property of nonreactivity with oxygen
Chromium
400
What happens to water when it goes through process called electrolysis? Which kind of change is that?
Water is broken down into hydrogen and oxygen gases.It is a chemical change.
400
The brick and a sponge have the same volume. Which one will have a greater weight and mass?
The brick will have a greater weight and a greater mass.
400
What is the mass of a 15 mL sample of mercury? Hint: the density of mercury is more than ten times the density of water
203.25 g/cm3
400
Explain why a golf ball is more denser than a table-tennis ball.
A golf ball is denser than a table-tennis ball because the golf ball contains more matter in a similar volume
400
What are 6 examples of physical properties?
Thermal conductivity, state, density, solubility, ductility and malleability.
500
What is a composition?
A composition of an object is the type of matter that makes up the object and the way the matter is arranged in the object.
500
Explain how the object's volume affect the object's mass and density.
Based on the formulas D= m/v, M= D x V, V= M/D, we can see that in order to find mass and density, we allways have to know the volume. If mass of an object is constant but the volume increases, then the object's density will become lower.
500
Explain the difference between mass and weight
The gravitational force between an object and the Earth depends on the object's mass. Mass is allways constant. But, objects weight can change depending on where it is in the universe.
500
How can you determine that a coin is not pure silver if you know the mass and volume of the coin?
Find the coin's density and compare it to the density of pure silver. If the pure silver has the same density as the coin, it means that the coin is made of pure silver.
500
What helps to blast the space shuttle into orbit? What is it made of? Is that an example of physical or chemical change?
Hot gas formed when hydrogen and oxygen join to make water helps blast the space shuttle into orbit. It is an example of chemical change.
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