Scientific Inquiry
This is what the word "science" comes from
The factor that’s being investigated or changed (tested); the only variable you change
What is the independent variable
Define hypothesis
A hypothesis is an educated guess, or a guess you make based on information you already know
True or false: metric length is measured using a standard ruler
False--we use a meter stick
This is what SI unit stands for
International system of equations
These are the 3 main branches of science
the factor that you observe and measure to obtain your results; depends on other factors
What is the dependent variable
helps you to gather information before an experiment, helps you come up with a hypothesis
Explain why using the SI units or metric system is important
The metric system is the internationally accepted system of measuring. It helps with eliminating confusion between measurements and helps with communicating scientific results
This is the SI (metric) unit for length
What is a meter
This is the definition for physical science
What is the study of matter and energy
These are the variables that all stay the same in the experiment
What are control variables
How might you communicate your results in an experiment
modeling the results, creating a graph, writing a scientific article
Convert 3.1 meters into dekameters
0.31 dam
This is the amount of space an object takes up, and its SI unit
What is volume (liter)
Theory:
-an explanation of observations that is based on knowledge gained from many observations and investigations
-can be wrong and may be changed after additional tests or observations
Law:
-a rule that describes a repeatable pattern in science
-Does not explain how something happens, only states that it will happen
What are the 3 variables used:
Questions--Which type of fertilizer increases flower growth best?
Hypothesis--Fertilizer A in soil will increase flower growth most.
Independent: type of fertilizer
Dependent: flower growth
Control: water, sunlight, pot, type of flower, etc
Write a hypothesis to the following scenario:
Imagine you are conducting an experiment to investigate the effect of different sizes of seeds on plant growth; what would be your hypothesis?
The bigger seeds will produce the most amount of plant growth
Convert 0.00623 centimeters into kilometers
0.0000000623 kilometers
This is the amount of matter in an object, and its SI unit
What is mass (gram)
Explain why tools for taking accurate measurements are essential to the scientists' work
teacher check answer
What are the 3 variables used:
Question--
Which brand of popcorn leaves the least amount of un-popped kernels?
Hypothesis--Orville Redenbacher’s Movie Theatre popcorn will leave the least amount of un-popped kernels.
Independent: popcorn brand
Dependent: amount of unpopped kernels
Control: cooking time, microwave, bag placement, number of kernels to start with, etc.
These are the 8 steps of the scientific method (6 required for full points)
What are: ask questions, make observations, make a hypothesis, make predictions, test hypothesis, analyze results, draw conclusions, communicate results
List all of the 7 metric length measurements
kilometer
hectometer
dekameter
meter
decimeter
centimeter
millimeter
This is the amount of mass in an objects given volume
What is density (mass / volume)