Atoms & Elements
Audra is looking at a diagram of an atom. Which particle(s) does she see inside the nucleus?
Protons and Neutrons
The Sun's energy arrives to Earth in these forms.
Infrared, visible light, and ultraviolet radiation.
What is an astronomic unit?
The average distance from Earth to the Sun.
Describe refraction of light.
Light waves change speed as they pass through different materials.
List the layers of the atmosphere from closest to Earth to farthest.
Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere
An element is also a pure substance. What is the reason for this?
An element contains only one type of atom.
The sun’s energy arrives as radiation on Earth. When Hector was at the beach, he especially enjoyed the warmth of the sun. Which part of the electromagnetic spectrum caused Hector to feel warm?
Infrared radiation
What is a lightyear?
The distance that is take for light to travel one year' NOT a measurement of time.
Light waves travel at different speeds through different medium. What is the correct order of increasing speed of light waves in medium, from slowest to fastest?
Solids -- Liquids -- Gases
The peak of Mount Everest is at an elevation of almost 9km, entering the lower stratosphere. Why would a mountain climber need an air tank to breathe when climbing Mt. Everest?
Air is less dense at this altitude.
Sarah discovered that Carbon (C) is found in Group 14 on the Periodic Table. Where should she look for another element that has similar properties?
in the same column.
What mnemonic device do we use to represent wavelengths of visible light?
ROY G. BIV
Satellites are used for communications and for collecting weather and other useful data. True or False - explain why.
True - we use satellites to relay TV signals, computer and phone signals from side of the planet to the other.
Sound waves travel at different speeds through different materials. List the correct order of how sound waves travel fastest to slowest through different materials.
Solids -- Liquids -- Gases
Ice from glaciers carves parts of Earth’s crust, changing V-shaped river valleys into broad, U-shaped valleys. Which spheres are interacting?
cryosphere and geosphere
What can you predict from an element's location in the Periodic Table?
Its chemical and physical properties
As part of her report on the radiation from the sun, Leonora prepared the drawing below to illustrate how wavelengths decrease in the electromagnetic spectrum.
However, Leonora made a mistake in the order of her electromagnetic spectrum. What should Lenora do to correct her mistake?
Microwaves -- Visible Light -- Infrared -- Ultraviolet -- Xrays
Reverse the positions of visible light and infrared.
What is the closest star to our solar system?
Alpha Centauri
How do we see objects that do not produce light?
Light waves reflect off of the object, which makes them visible.
Where is the ozone layer found, and why is it important?
Stratosphere; it absorbs most of the sun's UV radiation and protects life on Earth.
Explain the difference between a compound and an element.
A compound is made up of 2 or more different types of atoms while an element is only made up of one type of atom.
Caleb compares the wavelengths of different kinds of light. What statement could be made when comparing visible light and infrared light?
Infrared light has wavelengths that are longer than Visible light.
List the 5 benefits of technology in space.
1. Data collection and storage
2. Sample Collection
3. Computation
4. Measurement
5. Communication of information
Jimmy told his friend about the rainbow he just saw after a rainstorm. Jimmy then explained to his friend how a rainbow forms. What was Jimmy's explanation?
The light waves were refracted by moisture in the air.
Define each of Earth's spheres.
Hydrosphere - water
Geosphere - land
Biosphere - life
Atmosphere - air