The lesson will begin with students comparing and contrasting the physical properties of ice and water using a Venn diagram graphic organizer. Next, the students will describe the physical properties of ingredients needed for a microwave mug cake. The students will bake a chocolate microwave mug cake to demonstrate that some changes in matter caused by heating and cooling are irreversible. Lastly, the students will create a written and pictorial response comparing the water and ice to the microwave mug cake to provide evidence that some changes in matter can be reversed, while others can not.
This lesson results from the ALEX Resource Gap Project.
This lesson allows students to use the properties and characteristics of solids, liquids, and gases to determine how different variables affect states of matter. Students predict what will happen and spend short amounts of time daily to observe and record data. Students will graph their data into charts to see patterns and solve math problems.
This lesson was created as a part of the 2016 NASA STEM Standards of Practice Project, a collaboration between the Alabama State Department of Education and NASA Marshall Space Flight Center.
In this lesson, students will be able to explain that cooling water can change it to ice and that heating ice can change it back to liquid water. Students will be able to explain that this process can also happen to other substances. Students will also be able to explain that heating a substance makes its molecules move faster and cooling a substance makes its molecules move slower. The lesson can also be used to lay a foundation for learning about changes in state and chemical changes which can be further developed in later grades.
In this lesson, students will be able to explain that when some substances are heated to a certain extent, they change in a way that cannot be changed back by cooling them.
Students see a time-lapse video of cookie dough being baked into cookies. Students participate in a class discussion about heat-causing changes that cannot be reversed when cooled. Students learn that heating baking powder in the cookie dough makes gas and causes little holes in the cookie. Students design and conduct an experiment to see if baking powder causes more bubbling when it is warm or cold.
In these Hero Elementary activities, children explore solid and liquid materials. They observe, compare, and describe solid and liquid materials. They sort materials as solid or liquid. They find out how hot and cold can change the state of materials.
In these Hero Elementary activities, children explore how materials change when heated and cooled. For example, if you cool a liquid, it may become solid. What happens when you reverse the process and heat the solid—does it become liquid again? Or, if you heat a solid, it may become liquid. If you cool the liquid, will it get solid again? Children will discover that some changes are reversible and others are not. You can heat ice and it becomes liquid water. If you cool the water, it freezes and becomes ice again. If you heat popcorn, it pops and it does not “unpop” if you cool it. There is no way to unpop popcorn.
Use science inquiry to explore and test different ingredients to help Ruff make, decorate, and serve cookies to his family in this kitchen science game from The Ruff Ruffman Show. Students will explore how changes to substances are sometimes irreversible.
This resource is part of The Ruff Ruffman Show Science Collection.
Experiments are cool with a curious baby polar bear and his who, what, when, where, and why questions about the three states of matter. In this interactive lesson, students get hands-on with ice and record their observations through drawing and writing.
Use text features like captions, bold print, glossary, and index to learn about the hot and cold states of water and all about penguins. Students will read an informational text on what makes water freeze, look at cool penguin pictures, learn weird penguin names, and read how penguins enjoy the water in all of its states.
Physical changes mean matter changes size or shape, not its atomic makeup. Chemical and nuclear changes alter matter on an atomic level.
The classroom resource provides a video that will explain the difference between physical and chemical changes of matter. This resource can provide background information for students before they conduct their own investigations. There is also a short test that can be used to assess students' understanding.
An object’s pH level can be tested using indicators. Objects with a low pH are acids, and those with a high pH are bases. Acids and bases react together to form water and salt.
The classroom resource provides a video that will introduce students to pH levels, acids, bases, and their possible reactions. This resource can provide background information for students before they conduct their own investigations. There is also a short test that can be used to assess students' understanding.
The teacher will present an informational text from the website, ReadWorks. The students and teacher can interact with this non-fiction text by annotating the text digitally. The students will answer the questions associated with the article as an assessment. This learning activity can be used to introduce students to the changes caused by heating or cooling water, serve as reinforcement after students have already learned this concept, or be used as an assessment at the conclusion of a lesson. This article will provide evidence to students that the physical changes caused by heating and cooling water can be reversed.
