The amount of matter in an object is its:
a) volume
b) density
c) mass
d) conductor
What is c) mass
100
Their molecules are tightly packed together.
a) Solids
b) Gases
c) Liquids
What is a) Solids
100
This is the process that scientists use to examine the world and its happenings.
What is THE SCIENTIFIC METHOD
100
John filled a bottle half way with water, placed a lid on it, then put it in the freezer. How does the weight of the water and bottle compare before and after it is in the freezer?
The water and bottle weigh the same as they did when they went in the freezer.
100
The point at which a substance goes from a solid to a liquid is its:
a) pencil point
b) melting point
c) boiling point
d) liquid point
b) melting point
200
The amount of space an object takes up is its:
a) density
b) volume
c) buoyancy
d) conductor
What is b) volume
200
A substance which takes the shape of its container and has a definite volume is a...
What is LIQUID
200
Explain the difference between climate and weather.
Climate is the average weather conditions over a long period of time; whereas, weather is the conditions of the atmosphere at any point, at any place, at any time.
200
Ashley creates a clay bowl that weighs 1.0 lb. Which is the weight of the clay used to create the bowl?
1.0 lb
200
All pure substances have their own:
a) melting and boiling points
b) freezing points
c) liquid points
d) boiling and gas points
What is a) melting and boiling points
300
The more tightly packed an objects molecules are, the greater its:
a) volume
b) buoyancy
c) mass
d) density
What is d) density - a measure of how tightly packed matter is; the amount of mass contained in a given volume
300
In these states, matter cannot be held easily in your hand.
What are GAS and LIQUID
300
Name the 5 factors of weather
temperature, wind (speed, direction), precipitation, humidity, and air pressure
300
The mass of a piece of construction paper is 8 grams. The piece of construction paper is torn into 4 equal sections. When weighing the four equal sections together, what is the mass?
8 grams
300
Melting points are also known as....
What is FREEZING POINTS
400
The upward push on an object by the liquid (or gas) the object is placed in refers to its:
a) mass
b) volume
c) density
d) buoyancy
What is d) buoyancy
400
Melting is when matter changes from ________ to ______.
A solid to a liquid
400
Which statement is correct?
a) When heat energy decreases evaporation can occur
b) When heat energy increases evaporation can occur
c) Heat has nothing to do with evaporation
d) When heat energy increases condensation can occur
What is b) When heat energy increases evaporation can occur
400
Ray had a rope that weighed one pound. Which best describes the weight of the rope after he cut it into four pieces?
a) 1/4 lb
b) 1 lb
c) 2 lbs
d) 4 lbs
What is b) 1 lb
400
When liquid turns into a gas rapidly it is by ____________. When liquid turns into a gas slowly it is by _____________.
What are BOILING and EVAPORATION
500
The is the measure of force of gravity between Earth and an object. (HINT: the force of gravity is not the same on the moon)
What is WEIGHT
500
Name the phases of matter - in order- beginning with the one that has the most separated molecules to that which has molecules that are tightly packed.
Gas, Liquid, Solid.
500
Explain heat convection
As it relates to heat, warm air rises and is replaced with cooler air. This process of air movement and replacement happens again and again in a cycle. ex) the air in the classroom, a convection oven
In weather, convection means the upward movement of air.
500
Sue is making pudding for her family. She mixes 490 g of cold milk with 90 g of pudding mix and then puts it in the refrigerator to solidify. About how many grams of pudding was made? Explain your answer.
490 g (part) + 90 g (part) = 580 grams (total)
The weight is always the sum of all parts.
500
When heat is removed from a substance it begins to do this (if it is a gas to a liquid) or this (if it is a liquid to a solid)