Scientific Notation
what is 6100 written in scientific notation?
6.1*103
This is the first step in the scientific method, where scientists make an observation that leads to a question.
making an observation
Where do you go to in KHDUDCM for g, m, or L?
U (unit)
This is the variable that the experimenter changes or manipulates to observe its effect on the dependent variable
independent variable
This term refers to the consistent, repeatable accuracy of a measurement or experiment.
precision
what is 9,540,000 written in scientific notation
9.54*106
This step in the scientific method involves creating a testable prediction based on your observations and background research.
forming a hypothesis
convert 0.21 km to m
210 m
In an experiment testing the effect of different types of light on plant photosynthesis, the variable representing the type of light is known as this
independent variable
This is the term used for a factor in an experiment that the scientist intentionally keeps the same throughout the experiment
constant
What is 0.0000546 written in scientific notation?
5.46*10-5
During an experiment, if your hypothesis is not supported by the data, what is the next step in the scientific method?
revising the hypothesis or forming a new one
convert 0.00928m to mm
9.28 mm
In an experiment testing how the amount of fertilizer affects plant growth, identify the independent variable and the dependent variable.
the amount of fertilizer (independent variable) and plant growth (dependent variable)
This mathematical concept is used to express very large or very small numbers in a more manageable form, often seen in scientific calculations.
scientific notation
What is 0.000081000 written in scientific notation?
8.1*10-5
In an experiment, why is it important to have a control group that does not receive the experimental treatment?
to provide a baseline for comparison to determine the effect of the independent variable
convert 0.0000000332 km to mm
0.0332 mm
In an experiment to determine if temperature affects the rate at which a chemical reaction occurs, write a possible hypothesis that includes both the independent and dependent variables.
If the temperature increases, then the rate of the chemical reaction will increase
This term describes a well-tested explanation for a broad set of observations that is supported by a significant body of evidence.
scientific theory
what is 5.42*106 written in standard form?
5,420,000
You are designing an experiment to test whether a new drug is effective in reducing symptoms of a disease. Describe how you would ensure that the experiment is both reliable and valid.
use a large, randomized sample size, include a placebo control group, double-blind the experiment, and ensure that the only difference between groups is the drug being tested
0.0681 m
In an experiment comparing the effectiveness of two fertilizers on plant growth, these variables, such as the amount of water and sunlight each plant receives, must remain unchanged
constants
What are the names of the 3 branches of science?
life science, physical science, and earth science