Measurements
What the base unit for measuring mass?
Grams
Convert the following: 2.65 Km= _______ cm
265,000 cm
What is density?
The amount of mass in a given volume
What is the difference between qualitative and quantitative observations?
Qualitative observations deal with adjectives and not numbers
Quantitative Observations deal with numbers
What are the two types of graphs that we learned in class
Line graphs
Bar graphs
What the base unit for measuring Volume? (liquid)
Liters
Convert the following: 45678mL = _______ hL
0.45678 hL
DAILY DOUBLE!!!!! What is the formula for density?
Density= Mass/Volume
What is the difference between accuracy and precision?
Accuracy is the closeness of a measurement to the true value
Precision is the closeness of a group of measurements to each other.
The term used for the grouping together of items that are alike in some way is called…
Classifying
What the base unit for measuring length
Meters
When you move up the conversion staircase what operation do you use?
Divide
Name the formula for finding volume
Volume= Length * Width * Height
What is a good model of the earth?
Globe
What is an independent variable, dependent variable and a control variable?
Independent variable: the thing we change in the experiment
Dependent variable: the data we are measuring changed by the independent variable
Control variable: something that does not change for the entire experiment
Name 3 tools that are used to measure length
Measuring tape
Ruler
Meter stick
Yard stick
Etc.
Convert the following: 45L = ________ kg
NOT POSSIBLE
Calculate the following density of an object that has a mass of 275g, a length of 2 a width of 7 and a height of 5
Volume: 70
Density 3.92
Which of the following is a biased source of information?
Government agency
Museums
Scientific Labs
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What is the OFFICIAL SI unit for temperature
Kelvin
What is the system of measurement that we use in science class
Metric system!
List the metric conversion staircase from largest to smallest (7)
Kilo
Hecto
Deka
Base
Deci
Centi
Milli
Calculate the density for the following: volume: 458cm3 mass: 398g SHOW YOUR WORK
0.868 g/cm3
Facts, figures, and other evidence collected during a scientific investigation are called
Data
What is a simple representation of a complex idea called?
Model