Practice of Science
This is the number of independent variable(s) in a good experiment.
What is one?
This piece of evidence was discovered by Edwin Hubble and is used to show that all galaxies were moving away from us and away from each other.
What is the redshift of galaxies?
This is the order of star color from coolest to hottest.
What is red, orange, yellow, white, blue?
Our Sun is this type of star.
What is a main sequence star?
Put these in order from smallest to largest:
galaxy, star, moon, universe, planet, solar system
What is moon, planet, star, solar system, galaxy, universe?
This is why repetition and replication are important in science.
Why is so scientists can “check their work” and their results of an investigation will likely be more well accepted?
Earth is this many astronomical units away from the Sun.
What is one?
This is where all stars begin their life and is a cloud of gas and dust.
What is a nebula?
This is where nuclear fusion takes place.
What is the core?
Heat always moves from the __________ object to the __________ object.
warmer; cooler
This is the difference between an observation and an inference.
What is an observation is info collected uses your five senses, while an inference is a conclusion we draw based on our observations?
These two elements are the most abundant in our universe and were the first two elements to form.
What are hydrogen and helium?
This is how bright a star appears from Earth?
What is apparent magnitude?
This is the process of two hydrogen atoms colliding into one another, forming helium and providing a star with energy.
What is hydrogen fusion?
This is the force responsible for holding quarks together inside protons and neutrons.
What is strong force?
A study was done to find if different tire treads affect the braking distance of a car.
These are the independent, dependent, and control variables (just need one control variable).
What are IV: type of tire treads, DV: braking distance, CV: speed, type of car, type of road, etc...?
This is why the Big Bang is "only" a scientific theory and not a scientific law.
What is the Big Bang provides an explanation as to HOW the universe was created and WHY the universe is expanding and WHY there is radiation all over the universe?
This is the relationship the Hertzsprung-Russell Diagram shows us?
What is the relationship between brightness and temperature in stars?
This is the order of the Sun's layers from inside to the outside.
What is core, radiation zone, convection zone, photosphere, chromosphere, corona?
Explain how heat transfer occurs when ice is placed into a glass of lemonade. (Be specific and make sure to include the type of heat transferred involved.)
What is the thermal energy is transferred from the lemonade into the ice through conduction?
Krusty was told that a certain itching powder was the newest best thing on the market; it even claims to cause 50% longer lasting itches. Interested in this product, he buys the itching powder and compares it to his usual product. One test subject (A) is sprinkled with the original itching powder, and another test subject (B) was sprinkled with the Experimental itching powder. Subject A reported having itches for 30 minutes. Subject B reported to have itches for 45 minutes.
Explain whether the data supports the advertisements claims about its product.
What is yes, because the new itching powder lasted 15 minutes longer (50% more than 30 minutes) than the original itching powder?
This is the number of astronomical units in a light year.
What is about 63,241 AUs?
What is hydrostatic equilibrium?
The process when the outward pressure caused by nuclear fusion equals the inward force of the star's gravity.
This is what our Sun will become when its current fuel supply is depleted.
What is a red giant?
In 2009 there were 2.35x106 ferrets kept as pets in India. At the same time there were 3.43x105 ferrets kept as pets in France. How many pet ferrets were in total between the two countries? Write your answer in scientific notation.
What is 2.693x106 pet ferrets?