Science in our world - 3rd gr.
Science, Grade 3
Science in our world - 3rd gr.
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Science in our world - 3rd gr.
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Science in our world - 3rd gr.
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Science in our world - 3rd gr.
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Science in our world - 3rd gr.
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Study Guide Science in our world - 3rd gr. Science, Grade 3
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SCIENCE IN OUR WORLD Everywhere we look, there are signs of SCIENCE! Science is all around us. We see examples of many different scientific happenings every day. Plants Around Us If you took a moment to observe plants around you, you would notice that plants usually stay in the same place but still get what they need to survive. Let’s say you want to plant a garden in your yard. After you pick the area where you want to plant your garden, it is important to observe how much sunlight that area gets before picking out the type of plants to plant in your garden because some plants grow well in only areas that receive a lot of sunshine while other plants only grow well in shady areas. You can easily look at plants and trees and see that they each have many different parts such as leaves, stems, and roots too. Animals Around Us The weather is getting colder as fall turns into winter. You look in the sky and notice a group of geese flying south. The geese are flying to an area where the weather is warmer. This activity reminds us that geese are examples of birds that migrate. You are taking a walk in the park and notice a bird that has built a nest on a high branch of a tree. The bird quickly flies down to a puddle to take a drink. This reminds us that animals, like birds, need living and nonliving things to survive. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
How many animal homes (shelters) can you see around you as you walk in the park? …a bird’s nest, a beehive, or maybe a mouse hole. Just by observing several animals in the park, you will quickly notice that animals need to move around to get what they need in order to survive. Water that We Use Water is extremely important to the survival of every living thing on Earth. You can see many living things use or drink water every day. You drink water every day! It is important that the water we drink is clean, so that we don’t get sick when we drink it. There is a federal law in the United States called The Clean Water Act. This law protects our waters and tries to prevent people from polluting our waters…so we can have clean water to drink everyday! © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Weather We See Outside You might watch the weather report in the morning to see what the weather is going to be like for that day. If you hear the meteorologist say that the air pressure will be high for the day, you know that you will have a sunny day. Or you might hear a meteorologist on the radio report a severe thunderstorm watch in your area. This tells you that a severe thunderstorm could happen in your area soon. Rocks, Minerals, and Soil Under Our Own Feet All around you, or UNDER you, are rocks and minerals. You can see and touch these rocks and minerals to determine some of their properties. If you find a mineral and scratch it with your fingernail and pieces of the mineral fall to the ground, you have tested the mineral’s hardness. Natural Resources We Use and Need to Conserve Everyday (recycling) We use natural resources every day to light and heat our homes and schools, to drive our cars, and many other things. Natural resources are very precious and we need to be sure to conserve the resources we use each day. You could help conserve electricity by turning off lights when you leave a room or by opening your windows instead of turning on your air conditioner. You can conserve water by turning off the faucet while you brush your teeth or by taking shorter showers. This includes recycling too! One way you could create less garbage at home in order to help the environment and have less trash be sent to landfills is to recycling things like paper and glass. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Matter and Its Properties We Can See Matter is all around us. Anything you see around you that takes up space and has mass is matter. Properties are characteristics or traits of the objects we see around us every day. Some objects we see are large, while others are much smaller in size. Some objects are heavy, while others are light in weight. You can observe with your eyes and hands many physical properties of matter around you. For example, density is a property of matter. Let’s say you threw a rock in a creek and the rock sank right down to the bottom. You now know about the density of the rock: the rock had greater density than water. Changes in Matter We See Not only can you see matter all around you but you can also see matter changing states around you too. Matter has three states: solid, liquid, and gas. If you put an ice cube on the counter in your kitchen and wait a while, soon the ice cube would turn from a solid into a liquid, which would be a puddle on your kitchen counter. Let’s say you leave that puddle on your counter, soon the puddle would evaporate into the air, which means you would experience matter changing states again, the water changing from a liquid to a gas. Forces, Motion, and How Things Move Around Us (gravity) You see objects, people, and animals in motion all the time. If something or someone is moving – that means it is in motion! An example of an object in motion is a car driving by on the road. Sometimes you will see objects slowing down because of friction. If you roll a ball on grass and then you roll the ball on the sidewalk, you would notice the ball roll faster on the sidewalk. This is because the grass causes MORE friction against the ball making it roll slower than it did on the sidewalk. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Work and Machines We Use and See (simple machines) When you move something, you are working. Simple machines are used everyday by many people to make work easier to do. Everyday you most likely see or even use a simple machine….like when you see a pulley on the top of the flagpole at your school. When you walk up a ramp instead of the stairs, you are walking up an inclined plane, which is a simple machine. When you put something together using a screw, you are using a simple machine. Even when you go to the park and take a ride on the see saw with your little brother or sister, you are riding on a simple machine. Energy We See and Feel You see and feel Earth’s main source of energy everyday…the Sun. There are many kinds of energy that you feel, use, or see every day. When you rub your hands together you feel heat energy. When you use anything that requires batteries – you are experiencing chemical energy. When you stir your cup of hot chocolate with a metal spoon and feel the spoon getting warm – you are experiencing thermal energy. Light is also a form of energy that we see and use every day. When you wear a black shirt outside on a sunny day, the black color of your shirt will absorb the light from the sun, making you feel warmer. Light, when blocked, also creates shadows. You most likely will see a shadow every sunny day. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
Sounds We Hear When you hear sounds around you, you hear sounds of different volumes. Many sounds you hear around you measure in higher decibels, like an airplane taking off, and many sounds would measure in lower decibels, like when you hear someone whispering. When you listen to a band play or music on the radio, you can hear high and low sounds being played by different instruments. Pitch describes how low or high the sounds are that are being played. Our Planet Earth Every day on Earth, no matter what the date, is always 24 hours long. The Earth makes one complete rotation on its axis each day…and we don’t even feel it rotating! When it is daytime on our side of the planet Earth, it is nighttime on the other side of the world. The Earth and its position from the Sun determine what season we are having on Earth. So, if we live in the Northern Hemisphere, during the winter the Northern Hemisphere is tilted away from the Sun during the winter months, making it colder where we live. © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.
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