There's No Place Like Home Quack sets out to prove that HIS pond is the best and biggest pond in all the world. The kids are setting up a lemonade stand. How much juice is there in 2 lemons? The kids try to estimate the volume of liquid held in a lemon and in a pitcher as they mix lemonade. "Try having fun with guessing, mixing and measuring." Flipping Newton How do you unflip a turtle? (It's not as easy as you might think!) Lifting big rocks is easy when you use levers. The kids make a lever with a board and a brick to raise some pretty heavy things. "See if you can lift things with the help of blocks, bricks and boards."