Why don't scientists trust atoms?

Because they make up everything!

So I was at the park with my kids, and we saw a person flying a kite that was shaped like a shark. The kids were thrilled to see it soaring through the air, and we started talking about the different types of kites you can buy. I asked the person how they got their kite to fly so high, and they said

it was a jaws-dropping experience

What do you call a dog that does magic tricks?

A Labracadabrador!

I took my kids to the zoo and we saw an exhibit on elephants

and I said, 'I've got a trunk-load of jokes about these guys!'