Measurement
This type of matter uses numbers and measurements.
What is quantitative data?
The factor intentionally changed by the scientist.
What is the independent variable?
Write 6,420,000 in scientific notation.
What is 6.42 x 10^6?
Matter with definite volume but indefinite shape.
What is a liquid?
The formula used to calculate density.
What is d = m/v?
How many significant figures are in 405?
What is 3?
This describes how close a measurement is to the accepted or true value.
What is accuracy?
The factor measured in response to the independent variable.
What is the dependent variable?
Write 9.2 x 10^-3 in standard notation.
What is 0.0092?
A property such as density or melting point that does not depend on sample amount.
What is an intensive property?
Rusting iron is this type of change.
What is a chemical change?
How many significant figures are in 0.00620?
What is 3?
Repeated measurements of 14.1, 14.2, 14.1, and 14.2 cm demonstrate this quality.
What is precision?
The baseline group used for comparison.
What is the control group?
Convert 4.8 km to meters.
What is 4,800 m?
Saltwater is this type of mixture because its composition is evenly distributed.
What is a homogeneous mixture?
A sudden solid that forms during a reaction is called this.
What is a precipitate?
How many significant figures are in 8,700?
What is 2?
Experimental value = 19.6 g; accepted value = 20.0 g. Find the percent error.
What is 2.0%?
A student tests fertilizer amount on corn height. Soil, water, light, pot size, and corn variety are examples of these.
What are constants?
Convert 68°F to degrees Celsius.
What is 20°C?
A substance made of two or more different elements chemically combined in fixed proportions.
What is a compound?
A mineral has a mass of 54.0 g and volume of 20.0 cm³. Find its density.
What is 2.70 g/cm³?
How many significant figures are in 8,700.0?
What is 5?
Find the average of 12.4 cm, 13.0 cm, 12.8 cm, and 12.6 cm.
What is 12.7 cm?
In a graph of grams of sugar dissolved versus temperature, identify the independent and dependent variables.
What are temperature (IV) and grams of sugar dissolved (DV)?
Convert 325,000 mg to kilograms.
What is 0.325 kg?
Water is the solvent in this special type of solution.
What is an aqueous solution?
42 g of one reactant combines completely with 18 g of another. According to this law, the product mass should be 60 g.
What is the Law of Conservation of Matter?
Calculate 4.2 x 3.15 and report the answer with the correct number of significant figures.
What is 13?