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PBS Parents Picks

  1. Wild Kratts image

    Wild Kratts App Teaches Young Children How to Care for Animals

    In this app, kids are charge of feeding, washing, and playing with baby animals.

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    How (And Why) To Encourage Curiosity

    "...when people are curious about something, they learn more, and better."

  3. Gardening Benefits image

    The Benefits of Gardening With Kids

    Don’t let the idea overwhelm you. A few containers and soil in a sunny spot will do.

  • Vicki

    Great ideas! Thanksgiving is actually my favorite holiday. Music, food and family fun. Love it all.

    • Jessica

      Isn’t Thanksgiving grand? I always want to give the turkey its due!

  • Christy from DC

    Love the table cloth idea! Thanks.

    • Jessica

      You’re welcome Christy!

  • Wendy

    My daughter is making this craft at summer camp today. Looking forward to seeing it complete.

    • Raeanna

      what is your daughter,s name ?

  • Raeanna

    I,ve seen lava lamp on tv before

  • Rebecca Robinson

    My pig/horse cut-out likes “Barney and Friends”. My pig/horse cut-out is seven days old. My neighbor used to have a black cat that bites. One day it just ran off and disappeared. Maybe, a coyote killed it. Maybe, a stranger took it. My dog/mouse cut-out is seven days old. My dog/mouse cut-out likes “Barney and Friends”. She also likes “Kipper the Dog”. My pig/horse cut-out likes “Kipper the Dog”. He also likes “Mustard Pancakes”. My Alaskan Malamute cut-out turned two yesterday. I’ve seen some lava lamps before. My horse/moose cut-out likes “Barney and Friends”. He also likes “Mustard Pancakes”.

  • Stephanie

    how long did you have to wait for the water to sink to the bottom if you put the oil first?

  • Lynn D.

    This craft was a huge hit for my daughters 10th birthday! We didn’t wait for the water to sink and it still worked. I had them wait about 2 min tops and then gave up. The craft was pure joy. We did it with 5 girls. I had them do one step at a time and assist each other. We all stayed on the same step together and one person at a time. They repeated the alka selter step over and over again, they loved watching their own and each other’s. I would say have wet wipes on hand for the oil, sometimes a few drops would bubble out and wet wipes would have been handy. You need alot of Vegetable oil so buy enough. And we went through an entire box of alka seltzer tabs. The craft lasted about 30 minutes.

  • portlandme

    How can I make this into a science fair project ?

    • Sharon Kende-Anchor

      @Portlandme….You can start with the question, what makes a lava lamp work? The hypothesis would be, i think that alka seltzer is heavier than water so it sinks to the bottom of the container. Then, write the steps (procedure) and for conclusion explain that water is a conduit for the acid base reaction (alka seltzer is an acid and a base, citric acid and sodium bicarbonate, plus aspirin). The reaction gives off light products (carbon dioxide and water) and this causes the actual lava effect (bubbles moving to top)

  • Jen

    did the mixture spill out when you added alka seltzer? Looking to add this to a Girl Scout camp we are doing and although we are doing it outside, I wanted to see how messy it got when you added the alka seltzer. Thanks!

  • Episolve GI Natural_Antacid

    pretty amazing and gooey

  • G

    What is the point of the alka seltzer? Is it necessary? Does it have a porpuse?

  • Jessica Williams

    so what all do they learn from this activity? I would love to use this but I can’t find 3 things it teaches

    • Sharon Kende-Anchor

      This teaches about density. Oil is less dense than water, therefore, it floats on top of it.

      Next Alka-Seltzer sinks to the bottom, mixes with water, and the water starts a reaction between the acid and the base and the Alka-Seltzer. This is called an acid base reaction, more specifically baking soda reacts with citric acid.

      Lastly, the reactants, being baking soda and citric acid, chemically react to form carbon dioxide (and water) which float to the top of the glass. Again because of the density of carbon dioxide) being less than the density of the water or the oil.

      • Jessica Williams

        OK thanks.