Nature of Science
__________________ is a conclusion you draw from observations.
Ex. Sky is dark, ground is wet. My _________ is that it was raining.
A mouse is eating a tiny block of cheese.
Which COL does this represent?
All organisms are able to obtain energy / use it.
Define the term "Homeostasis"
refers to the ability of the body to maintain a stable internal environment despite changes in external conditions.
Two or more atoms bond together to form a(n) _____________________.
molecule
How many characteristics of life are there?
Is something alive if it has less than this #?
8
NO
Give me an example of a quantitative observation AND an example of a qualitative observation
Quant- #
Qual- color, sound, taste, smell, sight etc.
What are the two types of reproduction?
Sexual & Asexual
Gills, Lungs (alveoli)
Element
The nucleus of an atom contains which two atomic particles?
Protons and neutrons
A good hypothesis must have the words _____________________ and you must be able to _______________ it.
If, then
Test it!
A tadpole transforming into a frog is an example of which characteristic of life?
All living things must grow larger and become more complex throughout life.
What is thermoregulation?
Which part of the brain collects information to tell your body what changes to make?
The body's ability to stabilize internal temperature.
The hypothalamus
What is the difference between an ionic bond and a covalent bond?
An ionic bond is where electrons are donated
A covalent bond is where electrons are shared
The human body has to do gas exchange.
What two gases does the body need to balance?
Oxygen
Carbon Dioxide
List the steps of the scientific method in the correct order!
Observe
As a Question
Hypothesis
Experiment
Analyze Data
Conclusion
Communicate
Give an example of an organism showing two characteristics of life at the same time.
TBD
What are your kidneys responsible for doing in the body?
Describe urine color/amount when dehydrated vs. hydrated.
Kidneys control water absorption/release in the human body.
Dehyd. - dark color, low amount
Hyd.- light/clear, large amount
What are the three atomic particles, and what are their charges?
Proton- (+1)
Neutron- ( neutral, no charge)
Electron- (-1)
A ________ _________ is found on the outer most shell of an atom and is responsible for bonding.
Valence Electron
Choose to define one of the following terms:
Law
Theory
Principle
Law: •Describes / Summarizes observations that have been proven true.
Theory:•Well-tested explanation for a broad range of observations
Principle: •Idea based on scientific rules that the scientific community agrees on.
List all 8 characteristics of life
Cells
Reproduction
Evolution
Homeostasis
Respond to Change
Obtain Energy
DNA
Growth and Development
1. What organ helps humans regulate glucose levels?
2. Describe what this organ does when blood glucose levels are too low vs. too high
Pancreas
Too high: release insulin to reduce blood glucose
Too low: release glucagon to increase blood glucose
How many valence electrons do Carbon have?
+BONUS 200: why is this important?
What is 4 valence electrons?
BONUS: This allows carbon to make long chains of itself!
Give an example of a scientific law
Give an example of a scientific theory
Law: thermodynamics, gravity, Newtons laws
Theory: evolution etc.