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Questions and Answers
A string could be used first to measure the distance from H to each ______.
A string could be used first to measure the distance from H to each ______.
He
After removing the clothespin, inflate the ______ again to make it bigger.
After removing the clothespin, inflate the ______ again to make it bigger.
balloon
To measure the length of the string, a ______ or measuring tape can be used.
To measure the length of the string, a ______ or measuring tape can be used.
ruler
Record each distance on the initial measurement ______ in the table provided.
Record each distance on the initial measurement ______ in the table provided.
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Observe what happens to the ______ after inflating the balloon.
Observe what happens to the ______ after inflating the balloon.
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Repeat the process two more times and record your measurements under Trial ______ and 3 columns.
Repeat the process two more times and record your measurements under Trial ______ and 3 columns.
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Each trial's distances are recorded in the provided distance ______.
Each trial's distances are recorded in the provided distance ______.
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The distances measured in centimeters will be listed under the ______ heading in the table.
The distances measured in centimeters will be listed under the ______ heading in the table.
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As the balloon gets bigger, the H dot goes farther away from the other ______.
As the balloon gets bigger, the H dot goes farther away from the other ______.
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The other dot goes farther compared with the ______ dot.
The other dot goes farther compared with the ______ dot.
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The universe is continually ______.
The universe is continually ______.
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He used the radial pulse of the ______ star to measure the distance of the star from Earth.
He used the radial pulse of the ______ star to measure the distance of the star from Earth.
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He stated that the amount of ______ is proportional to the distance of the galaxy.
He stated that the amount of ______ is proportional to the distance of the galaxy.
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The theory explaining the expansion of the universe is associated with ______.
The theory explaining the expansion of the universe is associated with ______.
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The increasing distance between stars due to the expanding universe can be represented by a ______.
The increasing distance between stars due to the expanding universe can be represented by a ______.
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In the context of the universe, the concept of dots represents ______.
In the context of the universe, the concept of dots represents ______.
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The _____ theory explains the origin of the universe.
The _____ theory explains the origin of the universe.
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One strength of the big bang theory is its ability to explain the _____ of the universe.
One strength of the big bang theory is its ability to explain the _____ of the universe.
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The existence of _____ radiation supports the big bang theory.
The existence of _____ radiation supports the big bang theory.
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According to the big bang theory, the universe originated approximately _____ billion years ago.
According to the big bang theory, the universe originated approximately _____ billion years ago.
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Some scientists argue that the big bang theory does not adequately address the _____ of galaxies.
Some scientists argue that the big bang theory does not adequately address the _____ of galaxies.
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The big bang theory is often challenged by alternative theories, such as the _____ state theory.
The big bang theory is often challenged by alternative theories, such as the _____ state theory.
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An observed abundance of _____ supports the predictions made by the big bang theory regarding element formation.
An observed abundance of _____ supports the predictions made by the big bang theory regarding element formation.
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One criticism of the big bang theory is its reliance on the concept of _____ energy.
One criticism of the big bang theory is its reliance on the concept of _____ energy.
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The theory posits that the universe was once in an extremely hot and _____ state.
The theory posits that the universe was once in an extremely hot and _____ state.
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The discovery of _____ led to major support for the big bang theory in the mid-20th century.
The discovery of _____ led to major support for the big bang theory in the mid-20th century.
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The big bang theory suggests that all matter in the universe was once contained in a _____ point.
The big bang theory suggests that all matter in the universe was once contained in a _____ point.
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The concept of an expanding universe was first proposed by _____ in the 1920s.
The concept of an expanding universe was first proposed by _____ in the 1920s.
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The big bang theory is reinforced by the redshift of distant _____.
The big bang theory is reinforced by the redshift of distant _____.
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To fully understand the universe's evolution, scientists study the _____ of cosmic structures.
To fully understand the universe's evolution, scientists study the _____ of cosmic structures.
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The distances and speeds of the galaxies are ______.
The distances and speeds of the galaxies are ______.
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As the galaxy gets farther away from Earth, its ______ increases.
As the galaxy gets farther away from Earth, its ______ increases.
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The data indicate an increasing speed with increasing ______.
The data indicate an increasing speed with increasing ______.
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We can conclude that very distant galaxies have a ______ velocity.
We can conclude that very distant galaxies have a ______ velocity.
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The relationship between the speed and distance of galaxies shows an ______ trend.
The relationship between the speed and distance of galaxies shows an ______ trend.
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Galaxies that are extremely far away tend to have an ______ speed.
Galaxies that are extremely far away tend to have an ______ speed.
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The observation of distant galaxies suggests a link between distance and ______.
The observation of distant galaxies suggests a link between distance and ______.
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According to the data, galaxies display a ______ relationship between their speed and distance.
According to the data, galaxies display a ______ relationship between their speed and distance.
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The most common theory explaining the origin of the universe is the ______ theory.
The most common theory explaining the origin of the universe is the ______ theory.
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Scientists are working hard to find accurate answers about the ______ of the universe.
Scientists are working hard to find accurate answers about the ______ of the universe.
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At the end of the lesson, students should be able to describe the historical development of theories that explain the origin of the ______.
At the end of the lesson, students should be able to describe the historical development of theories that explain the origin of the ______.
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One of the proponents of the Big Bang Theory is ______.
One of the proponents of the Big Bang Theory is ______.
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The Big Bang Theory has some ______ that are important to consider.
The Big Bang Theory has some ______ that are important to consider.
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Georges Henri Joseph Edouard Lemaître is known as one of the early ______ of the Big Bang Theory.
Georges Henri Joseph Edouard Lemaître is known as one of the early ______ of the Big Bang Theory.
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The educational material emphasizes the importance of explaining the origin of the universe according to the ______ theory.
The educational material emphasizes the importance of explaining the origin of the universe according to the ______ theory.
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The lesson discusses enrichment competencies that students should meet by the end, including explaining the origin of the ______.
The lesson discusses enrichment competencies that students should meet by the end, including explaining the origin of the ______.
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Students learn to enumerate the negative implications of the Big Bang ______.
Students learn to enumerate the negative implications of the Big Bang ______.
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Materials for the Big Bang Balloon Activity include a ______ and a ruler.
Materials for the Big Bang Balloon Activity include a ______ and a ruler.
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The lesson emphasizes understanding the ______ of theories regarding the origin of the universe.
The lesson emphasizes understanding the ______ of theories regarding the origin of the universe.
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The introduction poses the question of how the universe ______.
The introduction poses the question of how the universe ______.
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Arno Penzias and Robert Wilson contributed evidence that supported the ______ theory.
Arno Penzias and Robert Wilson contributed evidence that supported the ______ theory.
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The Big Bang Theory is often discussed in the context of the ______ of the universe and its galaxies.
The Big Bang Theory is often discussed in the context of the ______ of the universe and its galaxies.
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Study Notes
Introduction to the Universe
- The quest to understand the universe's origin is a common human curiosity, with many scientists exploring various theories.
- The Big Bang Theory is the most widely accepted explanation for the origin of the universe.
Learning Competency
- Students should be able to describe the historical development of theories regarding the universe's origin by the lesson's end.
Learning Objectives
- Explain the Big Bang Theory as the origin of the universe.
- Identify key proponents of the Big Bang Theory.
- Recognize criticisms or negative implications associated with the Big Bang Theory.
Big Bang Theory Overview
- A scientific model proposing that the universe began from a singularity approximately 13.8 billion years ago and has been expanding ever since.
Key Proponents
- Georges Henri Joseph Edouard Lemaître: Proposed the concept of an expanding universe and introduced the idea of the "primeval atom."
- Edwin Powell Hubble: Discovered the redshift of galaxies, confirming they are moving away from us, which supports the expansion of the universe.
- Arno Penzias and Robert Wilson: Their discovery of cosmic microwave background radiation provided key evidence for the Big Bang Theory.
Drawbacks of the Big Bang Theory
- Some criticisms include its inability to fully explain certain phenomena, such as dark matter and dark energy's role in the universe.
- Other challenges revolve around the initial conditions of the universe and what preceded the Big Bang.
Activity: Big Bang Balloon Experiment
- A hands-on activity using a balloon to represent the universe's expansion.
- Increasing the size of the balloon demonstrates how galaxies (represented by dots on the balloon) move away from each other as the universe expands.
Key Points to Remember
- The universe is continuously expanding, as evidenced by the movement of galaxies away from each other.
- Understanding the universe’s origin involves complex theories and continual scientific investigation.### Correlation of Distances and Speeds of Galaxies
- A correlated relationship exists between the distances of galaxies and their speeds; as distance increases, speed also increases.
- This correlation suggests that more distant galaxies are moving away from Earth at higher velocities.
Implications for Extremely Distant Galaxies
- Galaxies that are extremely far from Earth exhibit greater velocities compared to those that are closer.
- The increase in velocity with distance supports theories related to the expansion of the universe.
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