What is the main source of energy for the Earth? What do plants need to grow and make their own food? What are the three states of matter? Why do we need air to breathe? What is th... What is the main source of energy for the Earth? What do plants need to grow and make their own food? What are the three states of matter? Why do we need air to breathe? What is the function of roots in a plant? Name three types of animals based on what they eat. What is the boiling point of water? Why do shadows form when light is blocked? What is the main job of the heart in the human body? What does it mean when an object is a solid?
Understand the Problem
The questions are asking about fundamental scientific concepts related to energy, biology, physics, and human anatomy. They cover various topics such as sources of energy, plant biology, states of matter, respiration, and the functions of organs.
Answer
The sun is the main source of energy for the Earth.
The main source of energy for the Earth is the sun. Plants need sunlight, water, and carbon dioxide to make their own food through photosynthesis. The three states of matter are solid, liquid, and gas. We need air to breathe for oxygen which is crucial for cellular respiration. The function of roots in a plant is to anchor the plant and absorb water and nutrients from the soil. The three types of animals based on what they eat are herbivores, carnivores, and omnivores. The boiling point of water is 100°C (212°F). Shadows form when light is blocked because light travels in straight lines and thus cannot bend around the object. The main job of the heart in the human body is to pump blood throughout the body. When an object is a solid, it means it has a definite shape and volume.
Answer for screen readers
The main source of energy for the Earth is the sun. Plants need sunlight, water, and carbon dioxide to make their own food through photosynthesis. The three states of matter are solid, liquid, and gas. We need air to breathe for oxygen which is crucial for cellular respiration. The function of roots in a plant is to anchor the plant and absorb water and nutrients from the soil. The three types of animals based on what they eat are herbivores, carnivores, and omnivores. The boiling point of water is 100°C (212°F). Shadows form when light is blocked because light travels in straight lines and thus cannot bend around the object. The main job of the heart in the human body is to pump blood throughout the body. When an object is a solid, it means it has a definite shape and volume.
More Information
The sun is essential not only for photosynthesis, but also for climate regulation and the water cycle on Earth.
Sources
- PDF Unit 3 Section 2 Lesson 2: Presto, Changeo - Maine.gov - maine.gov
- 5th Grade Science: Support how plants need air and water to grow - varsitytutors.com
- Why do plants need oxygen through their roots? - biology.stackexchange.com
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