WorksheetsSemester Exam Review
Total questions: 117
Worksheet time: 2hrs 39mins
What is the Big Bang Theory
a theory of how our solar system was produced
a TV show
a big bang that happened in space
a theory of how our planets formed in space
Which statement is true?
The galaxies are moving toward us.
The galaxies are moving away from us.
The universe remains static or unchanged in motion.
None of the above
Light emitted from a star or galaxy can be separated into a band of colors, called a ________.
Red Shift
Wave Length
Spectrum
Microwave
Cosmic Microwave Background Radiation is a form of _________.
Matter
Energy
Visible Light
Water
Wha type of tide would this arrangement of earth-moon-sun create?
full moon tide
new moon tide
neap tide
spring tide
What are the 3 Features above the suns's sun surface?
Sunspots,Prominence, Solar Flares
Solar Wind, Chromosphere, Nuclear Fusion
Corona, Solar Flare, Prominence
Radiation Zone, Electromagnetic, Sun
Explosions on the sun are known as.......?
Corona
Electromagnetic
Solar Flare
White Dwarf
Which can disrupt radio, televisions, and telephone signals
Prominence
Solar flares
Sunspots
Solar Winds
Which letter or letter combo indicates an organelle that makes energy for the cell? (the powerhouse)
B
C
CD
E
________ are heterogeneous forms of matter.
Compounds
Mixtures
Both A and B
Neither
Which of the following are properties of compounds? Check all that apply.
It takes a large amount of energy to separates the elements of a compound.
The proportions of the elements in a compound are always fixed
It is easy to separate the elements of a compound.
The elements/components of a compound do not retain their individual properties.
Which of the following are examples of mixtures?
Air
Ocean Water
table salt
all of the above
All matter can be classifed into two main categories: pure substances and mixtures.
True
False
When atoms of different elements are joined together into groups, they create __________.
compounds
mixtures
molecules
none of the above
The law of constant composition states that the ratio by mass of the elements in a chemical compound is always the same, regardless of the source of the compound (i.e. the proportions are constant). This law applies to which of the following?
compounds
mixtures
both
neither
Acids typically taste
sour
sweet
both
Identify the solvent
You can make a solute dissolve more quickly in a solvent by
adding more solute.
adding ice.
heating the solvent.
removing some solvent.
A solution that contains all of the solute it can hold at a given temperature is
diluted.
saturated.
supersaturated.
unsaturated.
A student pours mineral salts into a bottle of cold water. Which of the following best explains why shaking the bottle will affect the dissolving rate of the salt?
Shaking exposes the salts to the solvent more quickly.
Shaking helps more water evaporate.
Shaking equalizes the water temperature.
Shaking causes more ions to precipitate out of solution.
-Amount of water
-Height of Ice cube
-Temperature the ice cube was at its highest height
-Temperature of the water
-Size of the ice cube
-3mm holes
-Distant water traveled out of carton
-Different heights of the holes in the container
-Ice water from Iceland
