What is Science?
Science is a system of knowledge and the methods we use to expand knowledge.
_________ is the use of knowledge to solve practical problems.
Technology
A proposed answer to a question
Hypothesis
What are the 3 variables in an experiment?
manipulated/independent
responding/dependent
controlled
People around the world use the metric system which is a system of measurement based on what number?
10
What are the building blocks of all matter?
atoms
Information we gathered using our senses
Observation
Scientific ________ can be used to make it easier to understand complex concepts or ideas that are difficult to observe directly.
models
Variable in the experiment that is deliberately changed by the scientist
Manipulated/Independent Variable
What are the metric base units for
-Length
-Mass
-Volume
-Length: meter
-Mass: gram
-Volume: liter
What are the 2 branches of Physical Science
Chemistry
Physics
Observations that are descriptive to the quality of an object
Qualitative
After completing an experiment, what step comes next?
analyze data and draw conclusions.
The group in the experiment that does not receive the "treatment" or thing that is being tested. This group is used as a standard for comparison.
Control Group
What does the prefix "Kilo" mean?
1000
How close a measurement is to the true/target value
accuracy
The study of the composition, structure, and reactions of matter.
Chemistry
According to the scientific method, what must you do if your hypothesis is NOT supported by your data?
Revise your hypothesis
If you were doing an experiment where you test how different amounts of water effect plant growth, what would be 3 controlled variables you would identify?
answers vary
Convert 350 mL to ___ L
350 mL = 0.350 L
Study of matter and energy and how they interact through forces and motion
Physics
Physical Science
Earth and Space
Life Science (Biology)
What is the difference between scientific theories and scientific laws
Theories provide an explanation to an observation or experimental findings.
Laws are statements that summarize an event/pattern in nature.
Amy is doing an experiment to see if her new softball bat helps her hitting distance. She takes 10 swings with he new bat, and 10 swings with her original bat.
What would be the control group and what would be the experimental group.
control - old bat
experimental - new bat
Compare these two values using greater than, lesser than, equal to.
3.8 Dg is __________ 3800 dg
3.8 Dg is Lesser Than 3800 dg
What is the ultimate goal of the scientific method
solve a problem or better understand an observed event