What unit of measurement is used inside of our solar system?
Astronomical Units
What is the substance that light travels through?
Medium
What make waves within the EMS different?
Their wavelength
What type of wave do we most commonly use in space for communication?
Radio
Scientific knowledge may change as new evidence or information is discovered. Which of the following would NOT be a result of new scientific research and information?
A. Binomial nomenclature is assigned to a recently identified plant species.
B. An endangered monkey species is put in a reserve for protection from extinction.
C. A newly discovered chemical element will be added to the periodic table of the elements.
D. A nonnative plant species will begin to reproduce rapidly after being introduced into a swamp ecosystem.
D. A nonnative plant species will begin to reproduce rapidly after being introduced into a swamp ecosystem.
How far is 1 Astronomical unit?
BONUS- What is that distance in miles?
1 AU= The distance from the Sun to the Earth
~93 million miles
What is true about the frequency of the wave in this picture?
The wave's frequency increases as it move from left to right.
Name all the types of waves in order from largest to smallest wavelength.
Radio
Microwave
Infrared
Visible
Ultraviolet
X-Ray
Gamma
What is the type of waves that we can see?
Bonus- What is the wavelength range?
Visible light
~ 380 nm - 700 mn
A scientist wants to know why the honeybee population is declining. Which step would the scientist MOST LIKELY do first?
Research to see if there is already a widely accepted explanation.
Observe the problem and make a hypothesis about what is causing it.
Communicate the question to as many other scientists as possible so that they can discuss it.
Conduct an experiment to see if increased pollution is causing a decrease in the honeybee population.
Research to see if there is already a widely accepted explanation.
When would a scientist use Light-Years when measuring in space?
Outside of our solar system
When looking at your shirt, how is light reacting for you to see the color?
The light is reflection off your shirt to your eyes
White light is technically not white, what is it?
All the colors of the rainbow
ROYGBIV
What type of wave shows heat?
Infrared
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the dependent variable is...
The number of plants in the water
Which planet is closest to Earth?
Venus
Prisms and putting a straw in water have a similar affect on light. What is happening?
Refraction- bending the light
List the EM waves from largest to smallest frequency.
Gamma
X-Ray
Ultraviolet
Visible
Infrared
Microwave
Radio
What types of EM waves does the Sun radiate?
All 7 types
In a controlled experiment, all of the variables that can influence the dependent variable of the experiment are controlled or held constant, except for the independent variable. Which of the following hypotheses would NOT be tested using a controlled experiment?
A geologist’s hypothesis about how the Grand Canyon formed.
A biologist’s hypothesis that the use of fertilizer increases the growth of grass.
A geologist’s hypothesis that acid rain weathers sedimentary rock more rapidly than igneous rock.
A biologist’s hypothesis that increases in average temperatures cause an increase in honey bee population.
1. A geologist’s hypothesis about how the Grand Canyon formed.
What type of information can a satellite orbiting the moon NOT gather?
Samples
Many homeowners use solar panels on their roofs to absorb the sun's rays. Why is this beneficial to the homeowner?
The solar panels absorb/soak up the light energy from the sun and convert it to electrical energy.
Why does shining light in water and shining light through the air look different?
The density of the medium effects the speed of the light.
What can we say about the energy of EM waves as their wavelength increases?
As wavelength increases, energy decreases
A chemical reaction occurs in plants called photosynthesis. Based on the Law of Conservation of Energy, what happened to the Sun’s energy in the reaction?
it was converted into chemical energy stored in the sugar