How seeds grow; the evolution of bridges.
Balance and animals' use of camouflage.
The wonders of carbon; Thomas Edison.
The usefulness of gyroscopes; how to keep a healthy heart.
The origins of steel; how photographs are made.
The sun; how some animals change throughout their lives..
How vacuum cleaners work; how cloth is made.
Investigating snow; natural selection.
The differences between alligators and crocodiles; a look at robots.
Geysers; the function of kidneys.
A look at sleep; what makes sounds loud and soft.
Lobsters and crabs; Swiss scientist Daniel Bernoulli.
Why islands don't float; how springs work.