I show this video when discussing pyroclastic flows. This is a pyroclastic flow that killed a few people in Japan a couple of years ago. It is pretty impressive video as people try to protect themselves and outrun the flow. I also get to discuss how even though there are many warnings of a pending volcanic eruption occurring, it doesn't always mean that there will be advanced warning.
I show this volcanic eruption when trying to discuss the different types of eruptions. This one is called a lava dome eruption. Lava Dome eruptions stay pretty close to the vent and are very thick non explosive eruptions.
This video shows a recent eruption that occurred in Japan. I like showing this volcano video because it shows the eruption at night where you can see the lava bombs break open when they hit the ground. It also show lightning that sometimes if visible during volcano eruptions.
In this volcano video, students will be able to see a many climb up Krakatoa's child, Anak. I find this video fascinating because it vividly shows the results of recent volcanic activity. Your students will be able to witness what fine ash looks like and how fragments are ejected from the volcano. I show this video right after I show the Krakatoa The Last Days movie.
This volcanic eruption video is fantastic. A few people are on a boat when they see the eruption. What is amazing about it is the shock wave that is heard a few seconds afterward. Also you will be able to see the clouds get parted as the shock wave sores through the atmosphere. It is really a cool video to show students during you volcano unit.
In this lab students will observe the formation of salt crystals. Adding food coloring to your solution can also act as a chemical impurity so that you can have a discussion as to how minerals such as quartz get colored. Also students will see and be able to discuss mineral evaporation and precipitation.
Salt, hot plates, stirring rods, plates (preferably paper), water.
I group the students in groups of 3 to 4 as I am limited to space for the amount of plates.
Next time you are teaching your students about the scientific method, let them watch this Youtube video. The video does a great job explaining what the scientific method is by going through the different steps of asking questions, gathering information, forming a hypothesis and then stating a conclusion.