Buoyancy- Floating & Sinking | |
---|---|
Learning Objectives/Lesson Goals | Students will : -review what an invertebrate is and learn what some of the deep sea invertebrates are -learn the names and facts about some of deep sea invertebrates (bone-eating worm, dumbo octopus, brittle star, sea angel, vampire squid, giant siphonophore, apple anemone, bloody-belly comb jelly, fragile pink sea urchin, Johnson’s sea cucumber, giant isopod, sea pig, yeti crab, giant squid, midwater jellyfish (colobonema), midwater shrimp) -be able to match a fact with a photo of the deep sea invertebrate that goes with that fact Students will understand that all matter (solids, liquids, gasses) has mass and takes up space. A fixed volume of air is lighter than the same volume of water. An object floats when the weight of the water it displaces is equal to the weight of the object. Water pushes upwards on the submarine. This force is called buoyancy. Gravity pulls the submarine down into the water. Submarines can control their buoyancy by changing the amount of water and air contained in the ballast tanks of the submarine. Submarines with more air in the tanks float and submarines with more water in the tanks sink in the water |
WHERE | Classroom/Outside |
WHO | Classroom Volunteers |
MATERIALS |
|
ACTIVITIES |
SAFETY NOTE: Be careful not to blow into the vessel too often. Be sure that you replace the tube for each new person blowing into the submarine. Please have adults supervise when drilling holes in the plastic container. An adult may need to predrill holes before beginning the activity. |
RESOURCES | Deep Oceans, Activity 1: Buoyancy p.7-9 https://youtu.be/yWhKDts2CHM |