Questions and Answers
Why are lunar eclipses more widely visible than solar eclipses?
What are the two gases primarily responsible for global climate change?
When reading the level of mercury in a graduated cylinder, where should you read from?
In a series circuit with three identical batteries, what will happen to the chemical potential energy of the batteries?
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What is a characteristic of a partial solar eclipse?
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What is the mass of 1 mole of carbon dioxide?
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What is a chromatid?
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What is an example of Newton's first law of motion?
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What is the genotype of the parents if they have a blue-eyed offspring with a red-eyed child?
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What is the origin of igneous rocks?
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What is the characteristic of volcanic rocks?
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What is the last step in determining the empirical formula of a compound?
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What is the result when an aircraft flies at a constant altitude?
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Study Notes
OOP Cat Science Proficiency Subtest Reviewer
Chemistry
- 88 grams of carbon dioxide contains 2 moles of CO2, calculated by dividing the mass by the molar mass of carbon dioxide (44 grams per mole).
- Molar mass of carbon dioxide is calculated by adding the atomic mass of carbon (12) and 2 times the atomic mass of oxygen (16).
Biology
- A chromatid is one of two identical halves of a replicated chromosome during cell division.
- Each of the two replicated strands of a chromosome is called a chromatid.
Physics
- Newton's first law of motion states that every object remains at rest or in motion in a straight line at constant speed unless acted upon by an unbalanced force.
- An aircraft in flight is a good example of the first law of motion, with four major forces acting on it (weight, lift, thrust, and drag).
- When an aircraft flies at a constant altitude, the thrust exactly balances the drag, resulting in no net force and constant velocity.
Genetics
- If two hypothetical organisms with blue eyes have an offspring with red eyes, the parents both have a heterozygous genotype (blue eye color is dominant, and red eye color is recessive).
- The red-eyed offspring must have a homozygous recessive genotype.
Geology
- Igneous rocks originate when magma or lava cools and crystallizes, or when pyroclastic materials are consolidated.
- The two categories of igneous rocks are plutonic rocks (form within the Earth's crust) and volcanic rocks (form at the surface).
- Volcanic rocks can be distinguished from plutonic rocks by the size of their mineral crystals (volcanic rocks have small crystals, while plutonic rocks have large crystals).
Chemistry
- To determine the empirical formula of a compound, divide each element's percent value by its atomic mass, then divide each result by the smallest value, and finally round the results to find the lowest whole number ratio.
Astronomy
- Lunar eclipses are more widely visible than solar eclipses because Earth casts a much larger shadow on the Moon during a lunar eclipse.
- The reason why we see lunar eclipses more often than solar eclipses is that lunar eclipses are visible over more than half of Earth's surface, compared to less than 20% of Earth's surface for partial solar eclipses.
Environmental Science
- Global climate change can be attributed to the increase in two gases produced by human activities: methane and carbon dioxide.
Laboratory Procedures
- When reading the level of mercury in a graduated cylinder, read from the top of the meniscus (the curved surface of the liquid).
Physics
- In a series circuit, all three identical batteries will run out of chemical potential energy at the same time, provided they have equal charge and are identical.
OOP Cat Science Proficiency Subtest Reviewer
Chemistry
- 88 grams of carbon dioxide is equal to 2 moles of CO2, calculated by dividing the mass by the molar mass of carbon dioxide (44 grams per mole)
- Molar mass of carbon dioxide is calculated by adding the atomic mass of carbon (12) and 2 times the atomic mass of oxygen (16)
Biology
- A chromatid is one of two identical halves of a replicated chromosome during cell division
- Each of the two replicated strands of a chromosome is called a chromatid
Physics
- Newton's first law of motion states that every object remains at rest or in motion in a straight line at constant speed unless acted upon by an unbalanced force
- An aircraft in flight is a good example of the first law of motion, with four major forces acting on it (weight, lift, thrust, and drag)
- When an aircraft flies at a constant altitude, the thrust exactly balances the drag, resulting in no net force and constant velocity
Genetics
- If two hypothetical organisms with blue eyes have an offspring with red eyes, the parents both have a heterozygous genotype (blue eye color is dominant, and red eye color is recessive)
- The red-eyed offspring must have a homozygous recessive genotype
Geology
- Igneous rocks originate when magma or lava cools and crystallizes, or when pyroclastic materials are consolidated
- The two categories of igneous rocks are plutonic rocks (form within the Earth's crust) and volcanic rocks (form at the surface)
- Volcanic rocks can be distinguished from plutonic rocks by the size of their mineral crystals (volcanic rocks have small crystals, while plutonic rocks have large crystals)
Chemistry
- Empirical formula of a compound is determined by dividing each element's percent value by its atomic mass, then dividing each result by the smallest value, and finally rounding the results to find the lowest whole number ratio
Astronomy
- Lunar eclipses are more widely visible than solar eclipses because Earth casts a much larger shadow on the Moon during a lunar eclipse
- Lunar eclipses are visible over more than half of Earth's surface, compared to less than 20% of Earth's surface for partial solar eclipses
Environmental Science
- Global climate change can be attributed to the increase in two gases produced by human activities: methane and carbon dioxide
Laboratory Procedures
- When reading the level of mercury in a graduated cylinder, read from the top of the meniscus (the curved surface of the liquid)
Physics
- In a series circuit, all three identical batteries will run out of chemical potential energy at the same time, provided they have equal charge and are identical
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Description
Review key concepts in chemistry and biology, including molar mass, atomic mass, and cell division. This quiz is designed to test your understanding of these fundamental principles.
