Coming back from spring break, students were eager to visit and observe the fish again. We noticed: -They swim faster. -The fish are bigger. -They are silver. -They are still fry. In our discussion about the Rainbow Trout, students revealed misconceptions between saltwater and freshwater. Through visuals and guiding questions students identified what they knew about saltwater and freshwater:
Using their senses, students compared salt and baking soda as well as freshwater and vinegar. Again, we made predictions and students observed the results when salt was added to freshwater and vinegar and then baking soda to freshwater and vinegar. Students were particularly excited when they saw the vinegar overflow in reaction to the baking soda! Students were given the opportunity during center time to draw what they observed and learned from the experiment. With our practice of predicting and understanding of how saltwater is created, students were given another question: What do you think will happen to an egg when it is put in saltwater and freshwater? Students recorded their predictions through pictures and writing. A few ideas that came up were: -I think it will explode. -I think it will sink. -I think it will float. -I think it will dissolve. -I think it will crack. -I think it will hatch. -I think the water will overflow. -I think the water will turn yellow. -I think the salt will heat up the water. The following day, students observed the egg being dropped into freshwater. We noticed that the egg sank to the bottom and due to dropping the egg quickly into the jar, a little crack appeared with tiny air bubbles streaming to the top. Being extra careful placing the egg in the saltwater, students observed the egg floating in the saltwater. Students were surprised from their observations! Students recorded the results in their journals, drawing and writing about what they observed. Some things we noticed were: Freshwater: It's still fixed. It's not broken. It's white. When you dropped it in, it made a clink sound. The egg looks bigger. Saltwater: It's cloudy. It float. It's floating because there's more water. When we put the egg in, the water went up. The egg took away some water and pushed the water up top. The salt helps it to float because the salt is lighter than the egg and it pushes the egg uo. Through our discussions and experiments of saltwater and freshwater, students demonstrated the following outcomes:
I can describe the function of salt water and fresh water. I can talk about the difference between cause and effect of saltwater and freshwater. I can use water to explore scientific concepts. I can use my sight to observe changes in my environment. I can use touch explore salt, water and materials. I can count and measure when making salt water. I can guess what will happen. Students learned the following vocabulary: Sink, Float, Salt Water, Fresh Water, Larger, Smaller, Mix, Predict and Dissolve. Comments are closed.
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Upcoming Events:
May 31: PM Full Day Zoo Fieldtrip (8:55am-3:25pm) **NO SCHOOL FOR AM STUDENTS! June 5: Library books due June 6: Bike to School Day June 7: Celebration of Learning AM: 10:30-11:35am PM: 2:30-3:25pm AuthorMrs. Jacqueline Ang Archives
May 2017
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