WorksheetsUnit 1 Earth Science
Total questions: 36
Worksheet time: 33mins
An independent variable is what the scientist
keeps the same
observes
measures
changes
A dependent variable is what the scientist
keeps the same
observes
tests
changes
Identify the Independent variable from the following problem:
You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plant receives regular water. After a two-week period, the height is measured.
An independent variable is what the scientist
keeps the same
observes
measures
changes
Identify the Dependent variable: One tank of goldfish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times a day during a six week study. The fish’s body fat is recorded daily.
How does the sun give energy to the Earth?
red shift
By radioactive decay
An element is determined by the amount of
What are the three things that H-R Diagrams tell us about different stars?
Temperature, brightness (luminosity), and color
How many Hydrogens does it take to fuse one helium?
In the fusing of hydrogen into helium. What happens to 2 of the protons?
What are absorption lines?
different colors that don't tell us much scientifically
red shift phenomena
things that absorb into our bodies and leave lines behind
fingerprints of the elements
What is the phenomena where the sound pitch changes as it gets towards you (higher pitch) and then changes again moving away from you (lower pitch)
Red shift
blue shift
If galaxies are moving AWAY from us the color they will be shifted towards in the spectrum is...
What is the Big Bang Theory? (for science)
a funny tv show
the theory of how planets are formed. They start in a cloud of gas and dust, something disturbs them and they start to rotate.
that the universe has always stayed the same. It has always and will always be unchanging
the theory that the universe originated in a small volume of matter at extremely high density and pressure and rapidly expanded outwards
There are 3 big pieces of evidence for the Big Bang Theory. What are they?
Coriolis effect, blue shift, cosmic background radiation
Red shift, cosmic background radiation, star age
convection currents, blue shift, proton numbers
red shift, atmospheric balloons, electron numbers
In a stars life cycle there are 3 things in common that all start share. These things are:
nebula cloud, protostar, main sequence star
nebula, red giant, supernova
nebula, main sequence, black hole
protostar, red giant, white dwarf
A stellar nursery (cloud of gas and dust) is called a
This type of star is childhood to mid-forties when compared to a human. The star is primarily fusing Hydrogen into helium.
This is when the star runs out of hydrogen for fuel and starts fusing helium. This causes the star to expand rapidly and may even engulf some nearby planets.
Red Giant/supergiant
Which type of stars fuse elements at a Faster rate?
Low mass star
High mass star
Which type of star would create a black hole?
A star 3X+ larger then our sun
a star just like our sun (normal)
a star 1.5-3X the size of our sun
A gas giant like Jupiter
The very end stage of a star like our sun.
Black Dwarf
White Dwarf
How stars make elements up to iron
Stars 1.5X+ undergo a violent death called a
nuclear detonation
cosmic background radiation
planetary nebula
supernova
What is the term for the process where a star's core collapses under its own gravity, leading to a supernova?
Nebular Theory
Stellar Nucleosynthesis
Gravitational Collapse
Stellar Parallax
What is the process by which stars generate energy?
Nuclear Fusion
Nuclear Fission
Chemical Reaction
Gravitational Collapse
What is the process called when a star collapses under its own gravity?
Supernova
Black Hole
White Dwarf
Neutron Star
What is the independent variable in an experiment where the growth of a plant is measured over two weeks, with the plant being watered with different amounts of water each day?
The type of plant
The amount of water
The growth of the plant
The duration of the experiment
What is the phenomenon called when a star's light is stretched out, making it look red, as it moves away from the observer?
Red Shift
Blue Shift
White Shift
Black Shift
What is the term for the explosion of a star at the end of its lifecycle?
Red Giant
Supernova
White Dwarf
Black Hole
What is the term for the process by which stars convert hydrogen into helium?
Nuclear fusion
Nuclear fission
Chemical reaction
Gravitational pull
What is the name of the phenomenon where light from an object is stretched out, causing it to appear red, as the object moves away from the observer?
Blue shift
Red shift
Doppler effect
Diffraction
What is the term for the initial explosion that resulted in the formation and expansion of the universe?
Stellar Explosion
Supernova
Big Bang
Galactic Burst
What is the term for the final stage of a star's life cycle, where it is no longer able to sustain nuclear fusion and collapses under its own gravity?
Red Giant
Supernova
White Dwarf
Black Hole
What is the term for the shift in frequency and wavelength of light caused by the motion of the source?
Red shift
Doppler Effect
blue shift
Diffraction
Identify the Control variable in the following scenario: A scientist is studying the effects of different types of light on plant growth. She uses the same type of plant and gives them all the same amount of water and nutrients.
Type of light
Type of plant
Amount of water and nutrients
Plant growth
