A scientist is interested in learning about how salt added to water affects the boiling point of water. Develop a hypothesis for an experiment the scientist could perform to learn more. Identify the independent and dependent variables in your proposed experiment.
When graphing the relationship between variables, which variable should go on the x axis, and which one should go on the y axis? The independent variable goes on the x axis and the dependant variable goes on the y axis
How does the shape of a snowball affect the time it takes to melt? State the independent, dependent and controlled variables. Independent: shape of snowball. Dependent: time to melt. Controlled: same person making the snowballs
Which brand of paper towel absorbs the most water? State the independent, dependent and controlled variables Independent: different brands of paper towel. Dependent: absorption of water. Controlled: size of paper towel used.
Describe the difference between precision and accuracy Being accurate means that 1 measurement was exactly right but being precise means you have repeated the experiment and found consistent results
According to the metric system, what are the S.I. units for volume, length and mass? Litres, meters and grams
Use this conversion line to move between different units 50 dam 7 mg 5.72 dg 5 cm = _______ dam 0.007 g = ______ mg 0.0572 kg = ____ dg
Convert the following numbers either into or out of scientific notation. Use three significant digits: 0.005069 0.3401 1530067 10890 5.07 x 10 -2 3.40 x 10 -1 1.53 x 10 6 1.09 x 10 4
Calculate the volume of a rectangular bloc k that is 1000 mm long, 0.8 dam wide and 0.13 m high. Answer in cm 3. 1000 mm = 100 cm 0.8 dam = 8 cm 0.13 m = 13 cm Volume = L x W x H = 100 cm x 8 cm x 13 cm = 10400 cm 3