![]() ![]() 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.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 Open Professional Learning × Close Professional Learning Visit ThreeFourthsme to check out more amazing math and science products.Open Educational Resources × Close Educational Resources Physical Science / Chemistry Matter Bundle (includes everything) Physical and Chemical Properties Scaffolded Notes Pure Substances and Mixtures Scaffolded Notes I hope you are able to use this product for the betterment of your students and it makes your life easier. If there is a topic you would like me to develop a product for or if you would like me to alter an existing product to better match your teaching style, please let me know ARE APPRECIATED! This experiment looks at the chemical and physical properties of bleach, vinegar, and water using baking soda and food coloring.Ī detailed teacher key is provided upon purchase. ![]()
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