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1. Physical and chemical properties and changes activity how to#
2. Physical and chemical properties and changes activity professional#

The characteristics that enable us to distinguish one substance from another are called properties. Identify properties of matter as extensive or intensive.Identify properties of and changes in matter as physical or chemical.Students may wish to explore how changes in solids and liquids impact them, their families, the community and the environment.By the end of this section, you will be able to:.(cut things into smaller pieces, dissolve solids in liquids) Have students consider people who experience and use physical and chemical changes in their jobs, for example:.Students could also learn about the computational concept of inputs and outputs by identifying the inputs of a chemical reaction (e.g., baking soda and vinegar) with the outputs of the reaction (e.g., gas bubbles).Refer to this guide to better understand how students could do this. Students could use Scratch to practice coding skills by sorting images into physical and chemical changes.For example, if bubbles form then it is a chemical reaction, or if it melts then it is a chemical change. Conditional statements give rules to direct the flow of what happens, such as if something is true, then something will happen or else something else will happen. Have students write conditional statements for identifying if a change is physical or chemical.Students could create a poem or rap in which they define and give examples of physical and chemical changes.

Physical and chemical properties and changes activity how to#

Assure students that the symbols help us know how to safely use and dispose of the products so there is no harm to us or to the environment. You could bring in empty containers bearing these symbols and discuss with students what they think the symbols might mean and why they are placed on these products. Students may wish to explore the meaning of these international symbols that give us information on the safety of substances.For example, they could consider weather-related situations such as when rain turns to sleet or freezing rain.

Students may wish to explore how changes in solids and liquids impact them, their families, the community and the environment.Students could try mixing different types of liquids to look for evidence of physical or chemical changes.It is highly recommended that students follow up this lesson with the Mystery Powders lesson.To help students keep track of the experiment over the course of the week, use the Physical and Chemical Change Experiments Predict and Observe Chart  reproducible to monitor the changes day by day. Egg (or chicken bone) in vinegar (gas produced).Baking soda (or powder) and vinegar (gas produced)Īlternatively or in addition to, you could choose a physical and a chemical change experiment that requires more than one class period to complete with students.Chemical hand-warmers (temperature change).Roasting marshmallows (colour change, odour).Rusting steel wool (colour change, temperature change).Cabbage juice with acids and bases (colour change).Cut a piece of paper or a different material into smaller pieces.Note: Crosscheck for student allergies (egg, dairy, fruit, etc.) before choosing a demonstration. These demonstrations are quick and can be conducted within a class period. You could choose one demonstration from each of the two categories listed below. Model some physical and chemical changes to students. Pause the slideshow to describe the images using the alt text for students who are blind or have low vision.Īction: Exploring Physical and Chemical Changes (30-45 min.) Instructions

Physical and chemical properties and changes activity professional#

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