Plate Tectonics
When tectonic plates collide with each other. Mountains (ex. the Himalayas), trenches (ex. Mariana Trench), and Volcanoes are formed because of this.
Convergent Boundaries
What color are the hottest, brightest stars?
Blue
What is "an objects tendency to resist any change in its motion"?
Inertia (Newtons 1st Law)
What is the difference between Biotic and Abiotic Factors?
Abiotic factors are non-living things in an ecosystem and Biotic factors are living.
How many Hydrogen atoms are in CH4 ?
4
When tectonic plates move away/divide. Rift valleys form because of this (ex. Mid Atlantic Ridge).
Divergent Boundaries
The place where MOST stars lie on the H.R Diagram. (the sun is located here)
Main Sequence
What causes a ball that has been kicked across come to a complete stop?
Gravity and Friction.
Within an ecosystem, list the levels of organization from smallest to largest. ( Community, population, organism, ecosystem).
Organism, population, community, ecosystem.
Cracking eggs and mixing them in a bowl would be an example of what kind of change?
Physical Change
When tectonic plates slide/scrape against each other. This leads to fault lines (ex. San Andreas Fault) and earthquakes.
Transform Boundaries
What galaxy do we live in, and what type of galaxy is it?
The Milky Way/ Spiral Galaxy
A car hits a curb, and you apply a force on the seatbelt, and the seatbelt applies the same amount of force back on you. Which law is being applied?
Newtons 3rd law of action-reaction.
List 2 biotic factors competing for an abiotic factor.
Ex. Lion & Zebra fighting for territory.
Ex. Oak tree and Pine tree competing for sunlight and soil.
Ex. Dog & Cat competing for water.
List 2 indicators of a chemical change.
Color change, temperature change, creation of a new substance, production of a gas, producing an odor, etc.
What causes tectonic plates to move?
Magma flowing beneath the earth (Convection Currents).
What can a super giant star possibly turn into.
A black hole
A force of 20N acts upon a 5kg block. Calculate the acceleration of the object.
4m/s2
Sun/temperature, water, soil
During a chemical reaction, the products must equal the reactants. How does this show the law of conservation of mass?
The law of conservation of mass states that mass cannot be created or destroyed. If matter disappears during a reaction, then the law of conservation of mass is not being upheld. The matter must go somewhere.
Why is hot spot volcanism unique, and how are the volcanoes formed differently from those near tectonic plate boundaries?
Hot spots are created by an area deep within the Earth’s mantle where heat rises and begins to melt the rock at the base of the lithosphere. The crust becomes brittle, and the magma pushes through the crust, creating a volcano in the hot spot area.
What section of the Milky way galaxy do we live in?
The Orion Belt
Describe how all of Newton’s laws can be observed during a football game.
Newton’s 1st law can be observed when the football is sitting on the tee. At this point, balanced forces act on it. When the ball is kicked, an unbalanced force acts on it, causing it to change motion.
Newton’s 2nd law can be observed when players tackle each other. Players with more mass will require a bigger force applied to stop them.
Newton’s 3rd law can be observed when a player catches the ball. As a player catches the ball, it exerts a force on the player. In return, the player exerts a force of equal magnitude but in the opposite direction to bring the ball to rest.
What is biodiversity?
the variety of life in the world or in a particular habitat or ecosystem.
Is this an example of a balanced equation (Conservation of Mass) (2)Fe2O3 + C ----> Fe + (3)CO2
No