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In this activity you need a flashlight, A transparent container with flat parallel sides, and 250 milliliters (1 cup) of milk. There will be water in the container. Gradually as you experiment you will add more milk to the water. The water acts as the day time sky, the milk acts as the clouds, and the flashlight is the sun. As you add more milk it gives of the appearance of a more cloudy sky. The cloudier you make it the more orange the light will get. Basically the sun sets as you fill the container with more and more milk. I think this is an awesome idea. I have never seen this done before but I would have been amassed as a student to see this. it fits great with a weather lesson, a light lesson, or a lesson about clouds and cloud types. Depending on have advanced your students are you could probably ask them to give you examples of the cloud cover that might be present as you continue to pour in the milk. This is another good observation and journal point in class. Maybe you don't tell them right away what it is supposed to look like and you have them tell you instead. You could discuss how as clouds get thicker less light passes through and introduce terms such as transparent and translucent. Whether you tell them what it is or not it is a great connection to make with students. This is something that literally happens every day in their own lives. maybe you could have them go home with journals and compare the real sunset to the one you made in class today.

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 dairy farm is located in Trenton, IL and would be an excellent learning experience for children. You can set up a tour with the dairy by calling the number listed on the website. I envision taking this field trip during a unit on the food groups. It could also be used as a single, more specific, lesson about the process of creating yogurt, cheese, and milk. Students would also have the opportunity to taste a free sample of the yogurt after the tour. I can remember going on a field trip similar to this one when I was in the second or third grade. I would probably also use it for that grade level. It does not say the cost of the tour on the website but I was told that it is inexpensive.