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Science Final Study Guide
Terms in this set (32)
Water level slowly rising and falling twice that day is?
What's the position of Earth, the sun, and the moon during a lunar eclipse?
Earth comes between the Sun and the Moon
What keeps the moon in orbit around Earth?
To show how Earth rotates, with a toothpick how can you represent Earth's axis of rotation?
The Earth's axis of rotation is a vertical line that is tilted at a 23.5 angle
What is a common characteristic of winter compared to summer?
The sun is lower in the sky at noon
Astronomers use cameras on Earth and in orbit to observe the solar system and other objects in space. Suppose that a camera on Earth takes a picture of an astronomical event. The picture shows an object that is large, dark, and has a bright area immediately around it. What event does this picture most likely show?
Write an equation to show the effect of the gravitational pull of the sun and the moon on tidal range to show the effect of the sun and the moon on spring tides?
Sun + Moon = Spring tides
A region on Earth's surface always has the highest temperatures in June and the lowest temperatures in December. Why?
It is closer to the sun in June and further from the sun in December
Byproduct of an incidental result of a larger project/something made for space but is now used in everyday life
A kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously
An uncrewed vehicle that carries specific scientific instruments into space to collect data
A physical change
Changes affecting the form of a chemical substance, but not its chemical composition
A chemical change
Occurs when a substance combines with another to form a new substance
A specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky.
A device that gathers and focuses light to create a magnified image for direct view, or to make a photograph, or to collect data
A device that measures UV light from the Sun
Instrument designed to detect and resolve gamma rays from sources outside Earth's atmosphere
Conservation of Mass
A principle stating that mass cannot be created or destroyed
What happens when baking soda and vinegar are mixed?
It bubbles up and creates a new substance.
Some planetary images and satellite photographs are made using visible light. Other images are made with radiation from the non-visible portions of the electromagnetic spectrum. Which reasoning explains why scientists study images made with parts of the electromagnetic spectrum other than visible light?
The images reveal information that visible light does not show
Raul and Bonnie are trying to classify several objects that they found during a field trip to the beach. They collected a sample of seawater, a piece of driftwood, and several smooth pebbles. What property does the driftwood share with the pebbles that it does not share with the water?
Its particles vibrate, but are locked in place
Sunee mixes crushed ice into a glass of cold water. She puts the glass onto the kitchen counter. Then, she measures the temperature of the ice water. What should she expect to happen to the temperature of the ice and water mixture?
It will stay at 0°C until all the ice melts.
Which type of electromagnetic wave can be harmful?
X-rays, gamma rays, Ultraviolet/UV light.
Why does the x-ray department wear radiation badges?
Indicates the amount of radiation that they have been exposed to monitor exposure
What was the space shuttle used for?
Reusable spacecraft that brought people and cargo to and from space
What would happen if a proton were added to an aluminum atom?
It would not be aluminum anymore
There are more than 100 known elements which are mostly what?
You are studying the physical and chemical properties of a solid object. You subject the object to a number of tests and observations. Describe a chemical property of the object? (reactivity with)
In each square on the periodic table, there are four pieces of information concerning each element. Explain what each piece of information is.
The atomic number, the mass, the name, and the type
Suppose you have a material that you want to identify. Generally speaking, how could you tell whether the material is an element, a compound, or a mixture?
By looking where it is located on the periodic table
Sodium is a metallic element. It is a soft, silvery-white, highly reactive metal. Chlorine is a pale, yellow-green gas that was used as a chemical weapon in World War I. Consumed alone, sodium or chlorine would be toxic to an individual. However, when chemically combined, sodium and chlorine form sodium chloride, or table salt—a white, powdery compound that is beneficial to humans. How can two poisonous chemicals combine to form a different compound that is, in moderate quantities, necessary for life?
By chemical reactions making it safe
What best represents an electron?
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