Life Science
Earth Science
Physical Science
Nature of Science
Space Science
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
A melting ice cube is an example of what kind of change in matter?
Physical
100
What is a hypothesis?
A prediction or educated guess that is a possible answer to a scientific question.
100
What do you call a natural object that orbits a planet?
A moon.
200
What form of cellular reproduction creates gametes (reproductive cells)?
Meiosis
200
What kind of rock forms directly from cooling magma or lava?
Igneous Rock
200
What is measure of the pull of gravity on an object?
Weight
200
The ________ variable is the factor that is changed during an experiment in order to study the changes in the _________ variable.
independent, dependent
200
You see 3 stars, one blue, one white and one red. All 3 stars are the same size and distance from earth. Which star will be the brightest?
Blue
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 volcanoes
300
If you put a hot pot into a sink of cold water, what would be the primary way the heat would transfer from the pot to the water?
Conduction
300
What are models in science? Give one example of a scientific model.
Examples include... diagrams, 3D models, graphs, equations, etc
300
What shape is the orbit of the planets around the sun?
Elliptical
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
How many protons does one atom of Iron have? Electrons? Neutrons?
26 protons
26 electrons
30 neutrons
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 is the most important thing in determining a star's life cycle?
It's mass.
500
All living things are made up of
Cells
500
When materials like sediment move after breaking down
Erosion
500
All known elements are arranged by
Atomic number
500
Gravity is an example of a
A law
500
What planet is closet to the Sun<
Venus