Experimental Design and Scientific method
Result measured or observed
What is Dependent Variable?
Complete the mnemonic: King Henry Died By __________ __________ __________.
What is King Henry Died By Drinking Chocolate Milk?
Convert 4.84 km to centimeters.
What is 4.84 × 10⁵ cm.
Measurements are close to one another but far from the accepted value.
What is precise?
Write 71,000 in scientific notation.
What is 7.1 × 10⁴
Testable prediction
What is a Hypothesis?
Which is an SI base unit: meter, liter, or gram?
What is Meter?
Convert 77 mm to decameters.
What is 0.0077 dam or 7.7 × 10⁻³ dam.
Explain one possible reason a percent yield could be greater than 100%.
What is Contamination?
Write 8.3 × 10⁻⁴ in standard notation.
What is 0.00083?
you complete many tests or _____ to prove or disprove your hypothesis.
What are experiments?
What is the first action when a chemical spills on the lab bench?
What is Tell Mrs. Brooks
Convert 3.60 L to milliliters.
What is 3600 mL or 3.60 × 10³ mL
Accepted value = 78.37 °C; experimental value = 79.10 °C. Calculate percent error.
What is 0.93%?
How many significant figures are in 102.00?
What is 5?
Conditions kept the same
What is Constants?
True or False: Goggles and gloves must be worn at all times.
What is True?
Convert 425 cm to meters.
What is 4.25 m
Accepted value = 25.0 g; experimental value = 24.2 g. Calculate percent error.
What is 3.2%
(2.5 x 104 )(3.2 x 103)
What is 8.0 x 107
Factor intentionally changed
What is Independent variable?
Write the metric prefixes from kilo through milli in order.
What is kilo, hecto, deka, base, deci, centi, milli.
Convert 0.072 kg to grams.
What is 72 g
Theoretical yield = 42.0 g; actual yield = 38.5 g. Calculate percent yield.
What is 91.67%
5.6 x 102 + 4.4 x 101
What is 6.04 x 102