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Ask the students to determine which material was the best insulator based on their data.To calculate the change in temperature for each bottle, subtract the ending temperature from the beginning temperature.After 15 minutes, again measure and record the (ending) temperature of the water in each bottle.For 15 minutes, have students sketch their setups on their worksheets.Set aside the water-filled bottles in areas with the same ambient conditions (such as all in shade on the same surface material). Record these beginning temperatures on the worksheets.
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In this activity, a homeowner has heard about all the different types of insulation that are available to use in a new house and requests your help to decide between wool, newspaper, aluminum foil and plastic to insulate the house. A layer of trapped air can serve as insulation, too! Some insulating materials are also suitable for sound proofing. Engineers often use fiberglass, wool, cotton, paper (wood cellulose), straw and various types of foams to insulate buildings. Many different materials are used for insulation. Insulation helps to prevent that transfer of heat. When you touch something that is cold, heat is actually leaving your body to try and warm the cool surface, creating a balance of energy. Heat flows from warm areas to cool areas. When insulating a building, the quality (performance) of an insulation material is measured by how well it keeps heat out or in. In a building, insulation is placed in the walls and roof. Insulation is a material or substance that is used to prevent the transfer of heat, electricity or sound. One way engineers reduce the amount of energy required to heat or cool a building is by using good insulation. Most of a building's energy use is for heating or cooling. Buildings can often waste great amounts of energy. What does it mean to conserve energy? (Answer: It means using energy wisely and efficiently.) Sometimes people waste energy by not using it wisely. Students should be familiar with the steps of the scientific investigation process. Standard units are used to measure and describe physical quantities such as weight, time, temperature, and volume. (Boundary: At this grade level, mass and weight are not distinguished, and no attempt is made to define the unseen particles or explain the atomic-scale mechanism of evaporation and condensation.)
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Measurements of a variety of properties can be used to identify materials. Make observations and measurements to produce data to serve as the basis for evidence for an explanation of a phenomenon.Īlignment agreement: Thanks for your feedback! This activity focuses on the following Three Dimensional Learning aspects of NGSS: Make observations and measurements to identify materials based on their properties.Ĭlick to view other curriculum aligned to this Performance Expectation
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