Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Thursday, January 10, 2013

Sci-Fri Lava Lamps

 We made home made lava lamps during Sci-Fri! It was such a fun experiment and very cool to watch. Try it at home! Start with 3/4 of a jar of oil. Add some water to the top and watch the water sink to the bottom.

 Add food coloring to the mixture. Then add some broken up pieces of Alka-Seltzer.
 And watch the magic happen! It really looks like a lava lamp as the Alka-Selzer mixes with the oil and water and food coloring.
 It only lasts until the Alka-Seltzer dissolves where we then added a different food coloring and more Alka-Seltzer. We also tried to do it in bigger chunks of the Alka-Seltzer to see how it differed. We liked it better with little bits because it created more "lava".

 Love the concentration!!
 They were SO into this!









Monday, December 3, 2012

Sci-Fri Volcanoes!

We had our first Sci-Fri experiment! Every Friday, we are going to do a fun hands-on Science experiment. We will call it Sci-Fri (for Science Friday :) We will talk about the experiment before we start and be able to hypothesize what might happen. Then we will dive in! We had so much fun with our first one! We had a bin full of Baking Soda and cups filled with vinegar and food coloring. With droppers, we dropped the vinegar/food coloring mixture and watched what happened - the vinegar meeting with the Baking soda made bubbles almost like it was erupting like a volcano! In the end we were allowed to touch the mixture to see what it felt like (most said it was sand-like and soft) and then we poured the rest of the vinegar mixture in to really watch it all bubble! Stay tuned for more Sci-Fri experiments!!








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