G.E.D. SCIENCE TEST PREPARE.

PDF Download

G.E.D. SCIENCE TEST PREPARE.

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -19 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: Researchers want to conduct a study using random sampling. What is random sampling?

• Individuals are randomly selected from the population. Every individual has the same

probability of being selected.

• A control group is selected and every other individual is used for data.
• The population is divided into subgroups. Each subgroup has several individuals that

are selected.

• The population is divided into age groups and individuals are chosen at random from

within those age groups.

Answer:

• Individuals are randomly selected from the population. Every individual has the same probability of

being selected.

Question 2: Which of the following items are contained in our Solar System?

• Jupiter
• Moon
• Earth
• Asteroids

• All of the above

Answer:

• All of the above

Question 3: A fish swims through the water by using its fins to push water backwards. Pushing water backwards propels the fish forward through the water. This most nearly fits which of

Newton's Laws?:

A. Newton's First Law: Force=mass(acceleration)

• Newton's Second Law: objects in motion will stay in motion unless acted upon by a force,

objects at rest will stay at rest unless acted upon by a force

• Newton's Third Law: For every action, there is an equal and opposite reaction.

Answer:

• Newton's Third Law: For every action, there is an equal and opposite reaction.

Question 4: Cindy wants to figure out if daisies grow faster in cold weather or in hot weather.She puts one daisy in the fridge and one outside in the sun.What is the problem with Cindy's experiment?

• There are too many uncontrolled variables.
• There are no problems.
• There is no independent variable.
• There is no dependent variable.

Answer:

• There are too many uncontrolled variables.

Question 5: I put a Pop-Tart in the toaster. Electrical energy is transformed to thermal energy to make my Pop-Tart hot. Based on the Law of Conservation of Energy, once my Pop-Tart starts to

cool, is energy lost?:

• Yes. All the energy was used in the conversion of energy.
• No. Energy cannot be created or destroyed.
• Yes. The Pop-Tart is no longer hot.

• No. Energy can be created, but it cannot be destroyed

Answer:

• No. Energy cannot be created or destroyed.

Question 6: Which of the following best describes an eclipse?

Read the following description from Wikipedia:

An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer.Which of the following best describes an eclipse?

• When the moon passes between the sun and the Earth
• When a comet soars through the sky
• When a plane leaves a shadow on the ground
• When the sun passes between the Earth and the moon

Answer:

• When the moon passes between the sun and the Earth

Question 7: Earth has a natural satellite

• True
• False

Answer:

A. True : The moon

Question 8: Energy is changed from radiant energy to chemical energy by:

• Consumers
• Sun
• Decomposers
• Producers

Answer:

• Producers

Question 9: Seasons on Earth are caused by:

• Proximity to the equator
• Zeus
• Gravitational pull of the moon
• The position of Earth as it orbits the sun

Answer:

• The position of Earth as it orbits the sun

Question 10: A windmill is used to create electrical energy.

This change from one form of energy to another is called:

• Energy transformation
• Kinetic energy
• Mechanical energy
• Electrical energy

Answer:

• Energy transformation

Question 11: Your body turns food into sugar by an initial chemical reaction from chemicals in

your:

Read the following passage:

It all starts with that first bite of pizza. Your teeth tear off that big piece of crust. Your saliva glands start spewing out spit like fountains. Your molars grind your pizza crust, pepperoni, and cheese into a big wet ball. Chemicals in your saliva start chemical reactions. Seemingly like magic, starch in your pizza crust begins to turn to sugar! A couple of more chews and, then, your tongue pushes the ball of chewed food to the back of your throat. A trap door opens, and there it goes, down your gullet!Your Digestive System. (2012). Discovery Kids. Retrieved October 9, 2013, from

http://kids.discovery.com/tell-me/science/body-systems/your-digestive-system

Your body turns food into sugar by an initial chemical reaction from chemicals in your:

• Gullet
• Saliva