Vocabulary
What is a property?
something that can be observed about a substance such as its color, smell
How many atoms of each element are there?
H2O
O - 1 atom
What are the elements in the formula below?
CO2
carbon and oxygen
What properties does a cherry Jolly Rancher have?
answers vary
What is the capital of CA? (spelling counts)
Sacramento
What is a substance?
something that is made of all the same atoms or groups of atoms
How many atoms of each element are there?
CaCl2
Cl - 2 atoms
What are the elements in the formula below?
P₂O₃
Phosphorus and Oxygen
What properties does dish soap have?
answers vary
What is the largest animal in the world?
blue whale
What is the difference between molecules and atoms?
How many atoms of each element?
N2O5
N - 2 atoms
O - 5 atoms
What are the elements in the formula below?
Al₂O₃
Aluminum and Oxygen
What substance has the following properties?
solid, flexible, smooth, waterproof and can stretch and return to its shape
rubber band
Which organ is the heaviest?
the skin!
What is a chemical formula? What does it have?
Chemical formula is a formula that tells us what elements are used and how much of them (numbers = atoms, letters = elements)
How many atoms are there for each element?
HC₂H₃O₂
H - 4 atoms
C - 2 atoms
O - 2 atoms
What are the elements in the formula below?
Na2SO4
Sodium, Sulfur and Oxygen
What substance has the following properties?
Solid, hard, rough texture, dull appearance and does not dissolve in water
a rock
Where is the smallest bone found in the body?
the EAR!
What is an extended structure?
a structure formed by repeating groups of atoms that link together in a large network
How many atoms for each element?
NaNO₃
Na - 1 atom
N - 1 atom
O - 3 atoms
What are the elements in the chemical formula below?
Ag2CrO4
silver, chromium and oxygen
What substance has the following properties?
liquid, dark colored, thick and sticky, flows slowly and has a sweet smell
syrup or honey
About how many pounds of bugs does the average human accidentally eat each year?
5 pounds