Questions and Answers
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.
balloon
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.
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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.
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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.
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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.
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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.
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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 ______.
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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 ______.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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The distances and speeds of the galaxies are ______.
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As the galaxy gets farther away from Earth, its ______ increases.
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The data indicate an increasing speed with increasing ______.
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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.
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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 ______.
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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.
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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 ______.
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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.
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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.
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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 ______.
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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.
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The introduction poses the question of how the universe ______.
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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.
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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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Description
Test your knowledge of Earth and Life Science concepts for Grade 11 and 12. This quiz covers various topics including ecosystems, geology, and environmental science. Assess your understanding and preparation for advanced science studies.
