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STAAR Review 2017 Part 2
Test Description: Staar Review pt2
Instructions: Answer all questions to get your test result.
1) Astronomers use special equipment to study the electromagnetic spectrum. What is the electromagnetic spectrum?
A
The entire range of all radiant energy, except light visible to the human eye
B
The entire range of all radiant energy, including light not visible to the human eye.
C
The range of all radiant energy visible to the human eye
D
The range of all radiant energy with the shortest wavelengths
2) The atomic number of an element appears in the Periodic Table. The atomic number of an element is determined by the number of-
A
Neutrons in the atom’s nucleus
B
Protons in the atoms nucleus
C
Protons and neutrons in the atom’s nucleus
D
Electrons in the atom’s electron cloud
3) Which of the following best defines the universe?
A
Totality of everything that exists, including planets, stars, galaxies, space and time
B
The Sun along with the planets, their moons, and all other bodies that orbit it
C
A collection of stars, gases and dust held together by gravity
D
Cloud of gas and dust floating in space; “birthplace” of stars
4) A seal has warm fur and a lot of fat, making it well-adapted to a cold climate. If the climate continues to become warmer and this species survives, what change might you expect to find in later generations?
A
Less Fat
B
Longer Flippers
C
Smaller eyes
D
Thicker Fur
5) At which point along the ball’s path does the ball have the greatest potential energy but the least kinetic energy?
A
point B
B
point A
C
point C
D
point D
6) The Atlantic hurricane season lasts from June 1 through November 30 every year. Ninety-seven percent of all Atlantic hurricanes happen during this time period. Which of the following best explains why this is true?
A
Cold currents in the Atlantic Ocean are less active during this time period.
B
Fewer cold fronts pass over the Atlantic Ocean during this time period.
C
The waters of the Atlantic Ocean are warmest during this time period.
D
Hurricanes that occur in the Atlantic Ocean can happen only during summer months.
7) What role does cytoplasm play in both plant cells and animal cells?
A
Cytoplasm fills most of the cell and holds the organelles, which carry out each cell’s activities.
B
Cytoplasm converts energy from food into a form that all cells can use.
C
Cytoplasm makes proteins for cells and carries the proteins within the cells.
D
Cytoplasm forms both the cell membranes and cell walls of all cells.
8) Which of the following is a biotic factor in an ecosystem?
A
Rotting Log
B
Temperature
C
Water
D
Sunlight
9) An element in the Periodic Table has two orbitals in its electron cloud and four electrons in the outer orbital. What element is this?
A
Silicon
B
Titanium
C
Calcium
D
Carbon
10) In science class, a student read about an element that had the following properties. -Gray, metallic luster -Solid at room temperature -Brittle (hard, rigid, breaks easily) -Conducts electricity (under certain circumstances) Based on the properties
A
Metalloid
B
Metal
C
Nonmetal
D
Native Metal
11) Which system of the human body is responsible for breaking down food to be used for energy?
A
Endocrine
B
Circulatory
C
Reproductive
D
Digestive
*select an answer for all questions
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