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Water, ice, steam: Three states of matter. In this animated movie, you'll learn about the tiny atoms and molecules that make up matter and how changes in temperature and pressure cause these particles to gain or lose energy, thereby changing a material's physical properties! This video provides students with a lesson on the different states of matter. It explains why the matter change to different states and what they are made up of. I believe that this can help student understand what the different states of matter are as well as provide the student with extra knowledge.

The concept of the video is to show that when molecules are heated up they slow down and move farther apart, while the opposite happens when the molecules are cooled. The video shows and explains that by heating up the air inside an old, thick milk bottle and placing a hardboiled egg on top, the egg will be "pulled" unbroken into the bottle through the small opening at the top. The student explains that when the air inside is heated up the molecules spread far apart while the molecules in the cooler air outside of the bottle are compressed and practically push the egg through the opening. The student also does another demonstration that can be done safely at home, or in the classroom, by heating up the air in a glass juice bottle and placing a water balloon on top with the same results. She also shows that by cooling the air inside the bottle by blowing in it, the egg pops back out. I liked this video because the student is demonstrating and explaining to the grown ups the scientific principles involved. I also liked it because it provides a safe way to conduct the same experiment at home or at school. I think this is a great visual demonstration to add to chapters related to properties of matter. I would show the students the video and ask them how they think that worked. I'm fairly certain that a few would say it was a trick of some kind, so I would ask them if they thought we would get the same results or if something different might happen. I would then conduct the same experiment in the classroom.

This lesson involves using balloons to explain the difference between a solid, liquid, and gas. Before beginning the lesson, the teacher needs to have three identical balloons--one filled with a gas, one filled with a liquid, and one filled with a solid. Students would then be allowed to explore and compare certain traits of the different balloons such as weight, texture, and fragility. After exploring these many differences with students, the teacher could then explain to them the properties of a solid, a liquid, and a gas. This activity caught my attention because it was a cheap, easy, hands-on way for students to actively explore the differences between a solid, liquid, and gas. I would use this activity as a catchy introduction to a lesson on matter. (Although the creator of this activity used it for his/her preschool-aged children, I believe that it can be a great tool for the elementary classroom as well.)

This is a short audio-only clip that helps teach younger students about chemistry they can find in their own houses - specifically, the kitchen. The clip explains the various properties of water - solid, liquid, and water - and explains that all three, despite their three different forms, are all the same chemical. I chose this out of a desire to find grade-appropriate chemistry experiments for primary students, and I would use it in conjunction with video and a hands-on activity as part of a lesson on the three states of matter.

SciGuides are a collection of thematically aligned lesson plans, simulations, and web-based resources for teachers to use with their students centered on standards-aligned science concepts.