Daily Science, Grade 5 - Teachers Edition, Print - Free Printable
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Step-by-step solution for: Daily Science, Grade 5 - Teachers Edition, Print
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Show Answer Key & Explanations
Step-by-step solution for: Daily Science, Grade 5 - Teachers Edition, Print
The image shows a page from the "Daily Science" workbook for Grade 5, focusing on a weekly question: "Do we really drink the same water that dinosaurs did?" This question is part of Big Idea 3 and is designed to explore the concept of the water cycle. Below is an explanation of the solution and key concepts related to this question.
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#### Key Concepts Explained in the Image
1. Water Cycle: The movement of water between the ocean, air, and land is driven by the sun. Water evaporates from oceans, lakes, and other bodies of water due to solar energy. This water vapor rises into the atmosphere, cools, and condenses into clouds. Eventually, it falls back to Earth as precipitation (rain, snow, etc.).
2. Evaporation: When water heats up, it changes from a liquid to a gas (water vapor). This process occurs primarily over oceans and large bodies of water.
3. Condensation: As water vapor rises and cools in the atmosphere, it changes back into liquid droplets, forming clouds. This is called condensation.
4. Precipitation: When these droplets combine and grow heavy, they fall back to Earth as rain, snow, or other forms of precipitation.
5. Recycling of Water: The water cycle is a continuous process, meaning the water molecules on Earth are constantly being recycled. The water we drink today has been through the water cycle many times, including during the time of dinosaurs.
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The question asks whether we drink the same water that dinosaurs drank millions of years ago. The answer is yes, but with a nuanced explanation:
- Water is Recycled: The total amount of water on Earth remains relatively constant. It continuously cycles through evaporation, condensation, and precipitation. This means that the water molecules present during the time of dinosaurs are still present today, though they may have gone through countless cycles of evaporation, condensation, and precipitation.
- Water Molecules Are Reused: Over millions of years, water molecules have moved through different stages of the water cycle—evaporating from oceans, forming clouds, falling as rain, and eventually returning to bodies of water. Therefore, the water you drink today could contain molecules that were once part of the water dinosaurs drank.
- No New Water Created: There is no new water created on Earth; all the water we have is part of this continuous cycle. This recycling ensures that the water supply is reused over and over again.
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Understanding the water cycle helps us appreciate the interconnectedness of Earth's systems and the finite nature of our water resources. It also highlights the importance of conserving water, as the same water we use today has been used by life on Earth for billions of years.
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Yes, we do drink the same water that dinosaurs drank because the water cycle is a continuous process that recycles water molecules over and over again. While the specific molecules in your glass of water today may not have been directly consumed by dinosaurs, they are part of the same pool of water that has existed on Earth for millions of years.
This concept ties into the broader theme of sustainability and the importance of understanding how natural processes like the water cycle sustain life on Earth.
Final Answer: \boxed{\text{Yes}}
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Weekly Question: Do we really drink the same water that dinosaurs did?
#### Key Concepts Explained in the Image
1. Water Cycle: The movement of water between the ocean, air, and land is driven by the sun. Water evaporates from oceans, lakes, and other bodies of water due to solar energy. This water vapor rises into the atmosphere, cools, and condenses into clouds. Eventually, it falls back to Earth as precipitation (rain, snow, etc.).
2. Evaporation: When water heats up, it changes from a liquid to a gas (water vapor). This process occurs primarily over oceans and large bodies of water.
3. Condensation: As water vapor rises and cools in the atmosphere, it changes back into liquid droplets, forming clouds. This is called condensation.
4. Precipitation: When these droplets combine and grow heavy, they fall back to Earth as rain, snow, or other forms of precipitation.
5. Recycling of Water: The water cycle is a continuous process, meaning the water molecules on Earth are constantly being recycled. The water we drink today has been through the water cycle many times, including during the time of dinosaurs.
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Explanation of the Solution
The question asks whether we drink the same water that dinosaurs drank millions of years ago. The answer is yes, but with a nuanced explanation:
- Water is Recycled: The total amount of water on Earth remains relatively constant. It continuously cycles through evaporation, condensation, and precipitation. This means that the water molecules present during the time of dinosaurs are still present today, though they may have gone through countless cycles of evaporation, condensation, and precipitation.
- Water Molecules Are Reused: Over millions of years, water molecules have moved through different stages of the water cycle—evaporating from oceans, forming clouds, falling as rain, and eventually returning to bodies of water. Therefore, the water you drink today could contain molecules that were once part of the water dinosaurs drank.
- No New Water Created: There is no new water created on Earth; all the water we have is part of this continuous cycle. This recycling ensures that the water supply is reused over and over again.
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Why This Matters
Understanding the water cycle helps us appreciate the interconnectedness of Earth's systems and the finite nature of our water resources. It also highlights the importance of conserving water, as the same water we use today has been used by life on Earth for billions of years.
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Summary
Yes, we do drink the same water that dinosaurs drank because the water cycle is a continuous process that recycles water molecules over and over again. While the specific molecules in your glass of water today may not have been directly consumed by dinosaurs, they are part of the same pool of water that has existed on Earth for millions of years.
This concept ties into the broader theme of sustainability and the importance of understanding how natural processes like the water cycle sustain life on Earth.
Final Answer: \boxed{\text{Yes}}
Parent Tip: Review the logic above to help your child master the concept of daily science worksheet answers.