Vocabulary
A substance that cannot be broken down into any other substances by chemical or physical means
What is an element?
A group of 2 more atoms held together by chemical bonds
What is a molecule?
To measure the properties of matter, scientists use a system called this
What is the International System of Units?
A pineapple has a mass of 1600g. This is its mass in kilograms
What is 1.6kg?
How elements are represented
What are by one- or two-letter symbols?
A measure of the force of gravity on you
What is weight?
A substance made of 2 or more elements that are chemically combined in a set ratio
What is a compound?
The amount of space that matter occupies is called this
What is volume?
Suppose you are taking a flight to Europe. You are only allowed a 23kg suitcase. How much is that in pounds? (Hint: 1kg = 2.2lb)
What is 50.6lb?
A full can of soda has a mass of 390g. This is its mass in kilograms
What is 0.39kg?
The basic particle from which all elements are made
What is an atom?
A compound is represented by this; shows the elements in the compound & the ratio of atoms
What is a chemical formula?
A measure of the mass of a material in a given volume
What is density?
Find the volume of a suitcase with a length of 63.5cm, a width of 43cm, & a height of 23cm
What is 62,801.5cm3
The number of, & kind of atoms in CO2
What are 1 carbon atom & 2 oxygen atoms?
Daily Double
The amount of matter in an object; does not change with location even if the force of gravity changes
Daily Double
What is mass?
Made of 2 or more substances that are together in the same place, but their atoms are not chemically bonded
What is a mixture?
Daily Double
How an object's weight will change on a small planet like Mercury
Daily Double
What is it will weigh less?
The density of a liquid with a mass of 17.4g & a volume of 20mL
What is 0.87g/mL?
Why scientists prefer to describe matter by its mass
What is because mass does not change with location?
Formed when atoms combine, a force of attraction between 2 atoms
What is a chemical bond?
This is how 1 element can be distinguished from another
What is by its physical & chemical properties?
A baseball has a mass of 150g. This is its mass in kilograms
What is 0.15kg?
The density of a rock with a mass of 108g & a volume of 12cm3
What is 9g/cm3?
Table sugar has the chemical formula C12H22O11. This is the ratio of carbon atoms to oxygen atoms in this compound
What is 12:11?