How Ocean Waves Work - Educational diagram illustrating wave formation and movement.
Diagram showing how ocean waves work, including a labeled illustration of a wave and text explaining wave motion and properties.
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Show Answer Key & Explanations
Step-by-step solution for: OCEAN WAVES AND TIDES: Review/Research Worksheets| Digital ...
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Show Answer Key & Explanations
Step-by-step solution for: OCEAN WAVES AND TIDES: Review/Research Worksheets| Digital ...
Since the user has set all options (ExplainAnswer, TeachTopic, GeneratePractice) to false, I will proceed directly to providing the answers based on the text in the image.
Step 1: Analyze Question 1
* Question: "What is the main idea of this passage?"
* Analysis: The passage discusses how oceans cover most of Earth, what they are made of (water and salt), why they are salty (rocks eroding and rivers carrying salts), and that not all water bodies are oceans (some are lakes or seas). It also mentions different types of water bodies. The central theme ties everything together as an explanation of what ocean waves are and how they form, but looking closer at the specific questions provided in the "Questions" section at the bottom:
* 1. What is the main idea of this passage?
* a. How Ocean Waves Made?
* b. Why are Oceans Salty?
* c. What are Oceans?
* d. How do Tides work?
* Let's re-read the title. The title is "Name: How Are Ocean Waves Made?". However, the text itself talks about oceans in general—covering the earth, being salty, having islands, etc. But wait, let's look at the actual questions listed at the bottom of the page.
* Question 1: "What is the main idea of this passage?"
* Option a: How Ocean Waves Made? (This matches the title).
* Option b: Why are Oceans Salty? (The text explains this, but is it the *main* idea?)
* Option c: What are Oceans? (The text describes oceans).
* Option d: How do Tides work? (Not discussed).
* Actually, looking very closely at the blurry text under "Questions", Question 1 asks: "What is the main idea of this passage?"
* Let's look at the text content again.
* Paragraph 1: Introduces oceans covering 70% of Earth.
* Paragraph 2: Explains salinity (salt comes from rocks/rivers).
* Paragraph 3: Discusses freshwater vs saltwater and where salt comes from.
* Paragraph 4: Mentions different types of water bodies (lakes, seas).
* The title says "How Are Ocean Waves Made?", but the text doesn't actually explain wave mechanics (wind, energy transfer). It explains the composition of the ocean (saltiness). This is a common issue in worksheets where the title might be misleading or the student is expected to choose the best fit.
* However, let's look at the options for Question 1 again.
* a. How Ocean Waves Made?
* b. Why are Oceans Salty?
* c. What are Oceans?
* d. How do Tides work?
* The text focuses heavily on *why* the ocean is salty (Paragraph 2 and 3). It mentions "The saltiness comes from the erosion of the land." and "Rivers carry tiny particles...". Therefore, "Why are Oceans Salty?" seems like a strong candidate for the main idea of the *text provided*, even if the title is different.
* *Correction*: Let me look really closely at the first paragraph. "Oceans cover more than 70 percent of the Earth's surface... The water in the ocean is salty." Then it goes into detail about the salt. The text is definitely explaining the origin of ocean salt. So, option b is the most logical answer for the main idea of the *content*.
Step 2: Analyze Question 2
* Question: "Which of the following is NOT causing the oceans to become salty?"
* Options:
* a. Rain
* b. Rivers
* c. Volcanoes
* d. Erosion of rocks
* Text Evidence:
* "The saltiness comes from the erosion of the land." -> Supports (d).
* "Rivers carry tiny particles..." -> Supports (b).
* "Volcanic activity also adds salts..." -> Supports (c).
* Does it mention rain causing saltiness? Rain is fresh water. The text says "Rain falls on the land... dissolves minerals... carried by rivers." Rain itself isn't the cause; it's the mechanism that enables erosion/transport. But usually, in these multiple-choice contexts, "Rain" is the distractor because rainwater is fresh, whereas the other three (rivers transporting salt, volcanoes adding salt, erosion releasing salt) are direct sources or transporters of salt.
* Let's re-read carefully: "Rain falls on the land, dissolving minerals..." The rain causes the erosion/dissolving, but the *source* of the salt is the rocks/minerals. However, compared to Rivers, Volcanoes, and Erosion, Rain is the odd one out as a direct contributor of salt. In fact, rain dilutes the ocean.
* Wait, let's look at the options again.
* a. Rain
* b. Rivers
* c. Volcanoes
* d. Erosion of rocks
* The text explicitly lists: Erosion of land, Rivers carrying particles, Volcanic activity. It does *not* list Rain as a source of salt. Rain is the agent that starts the process, but it isn't listed as a *cause* of salinity in the same way the others are. Therefore, a is the correct answer for "NOT causing".
Step 3: Final Verification
* Q1: The text explains where the salt comes from (erosion, rivers, volcanoes). Thus, "Why are Oceans Salty?" is the best summary of the content.
* Q2: The text lists erosion, rivers, and volcanoes as contributors. Rain is fresh water. Therefore, Rain is the answer.
Final Answer Construction:
1. b
2. a
──────────────────────────────────────
Final Answer:
1. b
2. a
Step 1: Analyze Question 1
* Question: "What is the main idea of this passage?"
* Analysis: The passage discusses how oceans cover most of Earth, what they are made of (water and salt), why they are salty (rocks eroding and rivers carrying salts), and that not all water bodies are oceans (some are lakes or seas). It also mentions different types of water bodies. The central theme ties everything together as an explanation of what ocean waves are and how they form, but looking closer at the specific questions provided in the "Questions" section at the bottom:
* 1. What is the main idea of this passage?
* a. How Ocean Waves Made?
* b. Why are Oceans Salty?
* c. What are Oceans?
* d. How do Tides work?
* Let's re-read the title. The title is "Name: How Are Ocean Waves Made?". However, the text itself talks about oceans in general—covering the earth, being salty, having islands, etc. But wait, let's look at the actual questions listed at the bottom of the page.
* Question 1: "What is the main idea of this passage?"
* Option a: How Ocean Waves Made? (This matches the title).
* Option b: Why are Oceans Salty? (The text explains this, but is it the *main* idea?)
* Option c: What are Oceans? (The text describes oceans).
* Option d: How do Tides work? (Not discussed).
* Actually, looking very closely at the blurry text under "Questions", Question 1 asks: "What is the main idea of this passage?"
* Let's look at the text content again.
* Paragraph 1: Introduces oceans covering 70% of Earth.
* Paragraph 2: Explains salinity (salt comes from rocks/rivers).
* Paragraph 3: Discusses freshwater vs saltwater and where salt comes from.
* Paragraph 4: Mentions different types of water bodies (lakes, seas).
* The title says "How Are Ocean Waves Made?", but the text doesn't actually explain wave mechanics (wind, energy transfer). It explains the composition of the ocean (saltiness). This is a common issue in worksheets where the title might be misleading or the student is expected to choose the best fit.
* However, let's look at the options for Question 1 again.
* a. How Ocean Waves Made?
* b. Why are Oceans Salty?
* c. What are Oceans?
* d. How do Tides work?
* The text focuses heavily on *why* the ocean is salty (Paragraph 2 and 3). It mentions "The saltiness comes from the erosion of the land." and "Rivers carry tiny particles...". Therefore, "Why are Oceans Salty?" seems like a strong candidate for the main idea of the *text provided*, even if the title is different.
* *Correction*: Let me look really closely at the first paragraph. "Oceans cover more than 70 percent of the Earth's surface... The water in the ocean is salty." Then it goes into detail about the salt. The text is definitely explaining the origin of ocean salt. So, option b is the most logical answer for the main idea of the *content*.
Step 2: Analyze Question 2
* Question: "Which of the following is NOT causing the oceans to become salty?"
* Options:
* a. Rain
* b. Rivers
* c. Volcanoes
* d. Erosion of rocks
* Text Evidence:
* "The saltiness comes from the erosion of the land." -> Supports (d).
* "Rivers carry tiny particles..." -> Supports (b).
* "Volcanic activity also adds salts..." -> Supports (c).
* Does it mention rain causing saltiness? Rain is fresh water. The text says "Rain falls on the land... dissolves minerals... carried by rivers." Rain itself isn't the cause; it's the mechanism that enables erosion/transport. But usually, in these multiple-choice contexts, "Rain" is the distractor because rainwater is fresh, whereas the other three (rivers transporting salt, volcanoes adding salt, erosion releasing salt) are direct sources or transporters of salt.
* Let's re-read carefully: "Rain falls on the land, dissolving minerals..." The rain causes the erosion/dissolving, but the *source* of the salt is the rocks/minerals. However, compared to Rivers, Volcanoes, and Erosion, Rain is the odd one out as a direct contributor of salt. In fact, rain dilutes the ocean.
* Wait, let's look at the options again.
* a. Rain
* b. Rivers
* c. Volcanoes
* d. Erosion of rocks
* The text explicitly lists: Erosion of land, Rivers carrying particles, Volcanic activity. It does *not* list Rain as a source of salt. Rain is the agent that starts the process, but it isn't listed as a *cause* of salinity in the same way the others are. Therefore, a is the correct answer for "NOT causing".
Step 3: Final Verification
* Q1: The text explains where the salt comes from (erosion, rivers, volcanoes). Thus, "Why are Oceans Salty?" is the best summary of the content.
* Q2: The text lists erosion, rivers, and volcanoes as contributors. Rain is fresh water. Therefore, Rain is the answer.
Final Answer Construction:
1. b
2. a
──────────────────────────────────────
Final Answer:
1. b
2. a
Parent Tip: Review the logic above to help your child master the concept of ocean waves worksheet.
