Units
Scientific Method
Density
The Laboratory
Whateva!
100
Units for volume
What is mL,L?
100
A variable in an experiment that you plan to change
What is independent variable?
100
The density of a piece of wood that has is 29.4 cm3 and 25.0 grams
What is 0.85 g/cm3?
100
This measures the volume of a liquid.
What is graduated cylinder?
100
Variable that you measure in the experiment
What is dependent variable?
200
mass
What is g?
200
Numerical data, such as height, mass or temperature
quantitative
200
In order to calculate density, one needs to measure _______ and ________.
What is mass and volume?
200
This can measure the volume of a regularly shaped object, such as a shoebox.
What is ruler?
200
Qualitative data from the Density lab: mass , volume , density, color of the cylinder
What is color of the cylinder?
300
Density of liquid, solid, or gas
What is g/cm3 or g/mL?
300
The independent and dependent variable in this sentence : The height of sunflowers depends on the amount of water they receive.
What is amount of water (IV) and height (DV)?
300
The density of an aluminum block that occupies a volume of 15 mL and has a mass of 40.5 g.
What is 2.7 g/mL?
300
This instrument measures the mass of an object.
What is scale or balance?
300
A student measures the length of a book to be 32.4 cm. The accepted value of the length is 32.9 cm. The percent error of the student’s measurement is
What is 1.52%?
400
Length of a line
What is centimeter (cm)?
400
Henry and Eliza conducted an experiment using plant fertilizer. They added different amounts of fertilizer to seven pots of bean sprouts. The pots were the same size and had the same type and amount of soil. They were given the same amount of seeds, light, and water. To find out how the fertilizer affected the growth of the sprouts, Henry and Eliza calculated the average height of the bean sprouts in each pot. Independent, dependent, and controlled variables are...
What is amount of fertilizer (IV), height (DV), and same size, same type, amount of soil, same kind of fertilizer, same plant, seeds, light, water?
400
34.5 g of iron beads is added to a graduated cylinder containing 15 mL of water. The water level rises to the 45 mL mark, from this information, calculate the density of iron.
What is 1.15 g/mL?
400
This instrument can transfer small amounts of liquid from one container to another.
What is pippette?
400
The volume of the sugar sample that has mass of 3.65g and density of 1.59 g/cm3.
What is 2.30 cm3?
500
units of temperature that is usually used in science lab
What is °C?
500
Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich; however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint that would cure their bad breath. Two hours after eating the crabby patties, thirty customers in Group A and ten customers in Group B reported having better breath than they normally had after eating crabby patties. Control group is...
What is Group B (the one that received just a regular mint)?
500
A cubic block of lead has a width of 6.25 cm. The block weighs 1587 g. From this information, calculate the density of lead. (hint: V=LxWxH)
What is 6.5 g/cm3?
500
You have to look a graduated cylinder at eye level to get an accurate reading of the curve of the liquid.
What is the meniscus?
500
Ms. Pulia is from this country
What is Serbia?