Nature of Science
Life Science
Earth Science
Space Science
Physical Science
100
What is a hypothesis?
A prediction or educated guess that is a possible answer to a scientific question.
100
When is an species considered to be extinct?
When every single member of the species dies and is gone from Earth.
100
Name 2 renewable resources.
wind, sunlight, water, trees, soil, etc.
100
What do you call a natural object that orbits a planet?
A moon.
100
When a solid goes directly to a liquid that is an example of what kind of state change?
Melting.
200
The ________ variable is the factor that is changed during an experiment in order to study the changes in the _________ variable.
independent, dependent
200
What form of cellular reproduction creates gametes (reproductive cells)?
Meiosis
200
What kind of rock forms directly from dead organisms or sediment in the dirt?
Sedmintary Rock
200
What is the furthest planet from the sun?
Neptune.
200
What is measure of the pull of gravity on an object?
Weight
300
What are models in science? Give one example of a scientific model.
Representations of something that shows its parts or how it functions. Examples include... diagrams, 3D models, graphs, equations, etc
300
Give one example of how scientists study evolution.
fossil record, comparing similar species, comparing similar features on different species
300
If two of Earth's tectonic plates collided, what would occur?
Earthquakes, create mountains or volcanos
300
One astronomical unit is the distance from the _____________ to the ______________.
sun , Earth.
300
If you bake a cake is that an example of a chemical or physical change?
Chemical.
400
A scientist performs an experiment and asks other scientists around the world to replicate it. Why would other scientists most likely try to perform the same experiment?
To ensure that the results of the experiment are accurate and can be replicated every time the experiment is performed.
400
What are 2 structures that plant cells have that animal cells do not?
Chloroplasts and Cell Walls
400
Name 2 ways humans have caused negative changes in the environment.
pollution, climate change, erosion, habitat destruction, deforestation, desertification, species extinctions, etc.
400
The sun appears larger than others starts because of its....
distance from Earth.
400
How many protons does one atom of Iron have? Electrons? Neutrons?
26 protons
26 electrons
30 neutrons
26 electrons
30 neutrons
500
What are the steps in order of the Scientific Method?
Make an observation, ask a question, form a hypothesis, conduct an experiment, analyze results and draw conclusions.
500
A bird species feeds on the seeds of a particular tree. A long drought causes the outer covering of the seeds to become thicker and harder to crack. After many generations, what will be the most likely change on the birds in this population?
They would adapt to eating the thicker seeds by evolving thicker, bigger or stronger beaks.
500
What side this the moon is illuminated when it is waxing?
Right.
500
What phase is the moon in when it is closest to the sun? What about when it is farthest?
Closest- New Moon.
Farthest- Full Moon.
Farthest- Full Moon.
500
What are the three types of heat transfer and give an example of each?
Conduction- touching a hot seat belt
Convection- boiling water in a pot
Radiation- warming up food in the microwave.