Science Practice Lessons

Part One: Video Lesson

Part Two: Practice Questions

1. Conservation is imperative because without it:

A. the government cannot support protests
B. we can’t drill oil
C. we do not want to deplete all of our natural resources

Answer: C. we do not want to deplete all of our natural resources

2. This past year, Michigan experienced an incredibly wet spring. Due to the constant storming, farmers only had limited time frames when they were able to apply pesticides and fertilizers to their crop. Then, storms would come through and carry these pesticides into nearby rivers and streams. As a result of this agricultural run-off, pollutants are reaching lakes and bays where people draw their water from, raising health risks and concerns.

Which of the following could likely help in remedying this problem?

A. The implementation of innovative new agricultural processes and treatments.
B. Expediting the natural process of soil erosion.
C. The application of new metal and plastic waste treatment centers.

Answer: A. The implementation of innovative new agricultural processes and treatments.

3. Agricultural run-off and the water contamination are growing concerns because:

A. Rivers and streams are more essential than lakes and oceans for generating energy.
B. Soil is renewable resource that can regenerate every season.
C. Water is an important energy resources that humans require to survive.

Answer: C. Water is an important energy resources that humans require to survive.

Part One: Video Lesson

Part Two: Practice Questions

1. Plate tectonics suggests that the earth’s continents are like puzzle pieces that fit together. Which of the following seems to provides evidence of this theory?

A. That India is connected to Asia.
B. That it seems possible for Africa to fit into the east coast of America.
C. That America and Greenland are both in the Northern Hemisphere.

Answer: B. That it seems possible for Africa to fit into the east coast of America.

2. Which of the physical descriptions best explains the shape of the Earth?

A. It is a sphere that with four main interior layers.
B. It is a sphere that has two poles, which stretch east and west.
C. It is a sphere that is flattened at the poles and reaches its widest point at the equator.

Answer:C. It is a sphere that is flattened at the poles and reaches its widest point at the equator.

3. Which choice best completes the sentence, “The theory of plate tectonics____”:

A. explains why continents on the earth’s crust shift over time
B. describes the composition of the mantle
C. explains the effects of heat and pressure in the Earth’s core

Answer:A. explains why continents on the earth’s crust shift over time

Part One: Video Lesson

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Part Two: Practice Questions

1. True or False: You may be expected to create an experiment as part of the GED Science Exam?

A. True
B. False

Answer:A. True

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2. You will be expected to use _______ in your response.

A. facts
B. evidence
C. details
D. all of the above

Answer:D. All of the above

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3. You should begin your response by creating a:

A. hypothesis
B. conclusion
C. fact

Answer: A. hypothesis

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Part One: Video Lesson

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Part Two: Practice Questions

1. The value that occurs the most can be referred to as the:

A. Mean
B. Median
C. Mode

Answer: C. Mode

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2. What is the Median in the data set below?

6, 7, 8, 8, 9, 9, 10

A. 7
B. 8
C. 9

Answer: B. 8

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3. To find the mean, you must first:

A. Determine the total sum of the data set
B. Divide the data by two
C. Find the middle value

Answer: A. Determine the total sum of the data set

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4. Below is a weather chart from Weather.com predicting a five-day weather forecast for Wyoming, Michigan. What would be the average temperature of the five days?

A. 55.4°
B. 56.4°
C. 54.6°

Answer: B. 56.4°

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Part One: Video Lesson

Part Two: Practice Questions

1. True or false: Once your experiment is complete, you should repeat it.

A. True
B. False

Answer: A. True

2. Which of the following is not true about the fifth step of the Scientific Method: Drawing your Conclusion?

A. Drawing the conclusion can only occur once the experiment is complete.
B. Your conclusion will state whether or not your experiment was effective.
C. Your conclusion will only state positive outcomes of the experiment.

Answer:C. Your conclusion will only state positive outcomes of the experiment.

3. After you witness a phenomenon, you should then:

A. Formulate a question
B. Decide what your independent variable should be
C. Draw a conclusion

Answer: A. formulate a question

4. _____ may cause a change in the experiment.

A. Dependent Variable
B. Independent Variables
C. Constants

Answer: B. Independent Variable

Part One: Video Lesson

Part Two: Practice Questions

1. Darwin found that on the mainland of South America, iguanas had small claws. This allowed them to climb trees in order to eat leaves. However, iguanas on the islands had large claws which allowed them to grip wet rocks in order to eat seaweed.

Which of the following statements below best describes the occurrence described above?

A. physical changes of the iguanas occurred over the course of generations to help them survive their environments, called adaptations.
B. The species on the islands must not have produced enough offspring because they could not climb trees.
C. Darwin’s conclusions were inconclusive because there was not enough variation to study.

Answer:A. physical changes of the iguanas occurred over the course of generations to help them survive their environments, called adaptations.

2. Read the following passage and then answer the question that follows:

Squirrels are a breed of animal seen all over the world. However, they possess many variations depending on where they live. For example, the Fox and Gray squirrel, while both squirrels, have many varying physical traits. The Fox squirrel have a rust colored belly and a black outline up their tail. Gray squirrels, on the other hand, are mostly gray, with a white tail. Fox and gray squirrels typically live in different areas. Their colors are a defense mechanism that allow them to easily blend into the forests in which they live.

Which of the terms and explanations below best describes the color difference found in the species of squirrels?

A. Variation explains why the squirrel species has varying traits like the coloring of their tails.
B. Natural Selection can explain why competition created scarcity and scarcity would explain their physical change.
C. Adaptation explains why both the Fox and the Grey squirrel have red tails.

Answer: A. Variation explains why the squirrel species has varying traits like the coloring of their tails.

3. Because a species can produce more offspring than can survive, which of the following results:

A. resources increase
B. resources decrease
C. resources remain the same.

Answer: b. resources decrease

Part One: Video Lesson

Part Two: Practice Questions

1. Which of the systems is responsible for breaking down nutrients in the body in order to produce energy?

A. Digestive System
B. Respiratory System
C. Circulatory System

Answer: A. Digestive System

2. In the scientific process of “photosynthesis” green plants produce oxygen for humans to inhale. Humans then inhale oxygen into the lungs, but first it must pass a long tube that runs from the mouth to the lungs called the:

A. bronchi
B. bronchioles
C. trachea

Answer: C. trachea

3. A cardiologist is a doctor who has specialized knowledge of the circulatory system.

Which of the following patients is most likely to be treated by a cardiologist?

A. A patient who has recently passed a kidney stone
B. A patient who suffers from chronic heartburn and indigestion
C. A patient who has recently suffered from a heart attack

Answer: C. A patient who has recently suffered from a heart attack

4. The brain stem is most closely related to which system?

A. Digestive System
B. Nervous System
C. Circulatory System

Answer: B. Nervous System

Part One: Video Lessons

Part Two: Practice Questions

1. Mel went to the doctor for a fever and rash. After his examination, the doctor concluded he had an infection, then prescribed him an antibiotic.

Which of the following statements would be true of this situation?

A. Mel’s body produced too many antibodies to fight the infection on his own.
B. A fever and rash are physical symptoms of the infection.
C. He should have had an immunization for this illness as a child.

Answer: B. A fever and rash are physical symptoms of the infection.

2. Paula went in for her yearly physical. She is 35 years old and overweight. Because her mother died of heart disease, her doctor has made strong recommendations that she make certain changes in her lifestyle.

Which of the following changes would her doctor most-likely recommend?

A. Paula should alter her diet by eliminating as many sugars and fatty foods as possible.
B. Paula should alter her diet by consuming more carbohydrates than she already consumes.
C. Paula should take regular antibiotics to help ward off harmful antibodies.

Answer: A. Paula should alter her diet by eliminating as many sugars and fatty foods as possible.

3. In America, children are immunized for Smallpox and Chickenpox at a young age.

Which of the following statements is actually an opinion, not a fact, about immunizations?

A. Immunizations will provide protection from the specific infectious disease.
B. Children who do not receive the immunization will be more susceptible to their infectious disease.
C. No child should not be given an immunizations because they cry when they receive them.

Answer:C. No child should not be given an immunizations because they cry when they receive them.

Part One: Video Lesson

Part Two: Practice Questions

1. Producers are dependent on:

A. consumers for energy
B. sunlight for energy
C. green plants for food.

Answer:B. sunlight for energy

2. An aquarium with tropical herbivorous fish, aquatic plants, and algae sits in a third grade classroom. Which of the statements is true?

A. It is a self-sustaining ecosystem because the fish rely on students to feed it.
B. It replicates a natural ecosystem because it has a balance of producers and consumers.
C. It is symbolic of a natural ecosystems because the producers rely on consumers.

Answer: B. It replicates a natural ecosystem because it has a balance of producers and consumers.

3. Read the scenario below and then answer the question that follows.

In their natural habitat, fox eat rabbits, who eat grass, which is dependent on sunshine to produce energy.

Which of the following might you conclude about the scenario?

A. In the woodland ecosystem fox are consumers.
B. In the woodland ecosystems, rabbits control the population of fox because they are producers.
C. Ultimately the sunlight is the biggest consumer.

Answer: A. In the woodland ecosystem fox are consumers.

Part One: Video Lesson

Part Two: Practice Questions

1. Which of the following are products of photosynthesis?

A. water, oxygen, and energy.
B. carbon dioxide and glucose
C. water and carbohydrates

Answer:B. carbon dioxide and glucose

2. Fill in the blank. _______ are structures inside the cells of a leaf that contain chlorophyll.

Answer: Chloroplasts

3. Which of the following must occur first for the process of photosynthesis to be successful?

A. Light energy is captured by chloroplasts.
B. Plants get H20 from the soil.
C. Chlorophyll absorbs light energy from the chloroplasts.

Answer: A. Light energy is capture by chloroplasts