Camouflage in Nature
Greetings from Earth
A Desert Secret
Computers and Checkers
100
It disguises the walkingstick to look like something else.
Why does the shape of a walkingstick help it?
100
This will show others the kind of beings who made Pioneer 10.
Why is there a picture of a man and woman standing next to the craft?
100
This is an essential when packing to go on a trip to the desert.
What is water?
100
Memorizing the best positions
What will help you play a good game of checkers?
200
The reason is that the leaves on the trees are green in the spring.
Why does the walkingstick change its color to green in the spring?
200
This was to show a friendly greeting.
Why is the man's hand raised in the picture?
200
This is the best time to find desert animals.
What is night?
200
Another computer can do this.
Who can most easily beat a computer?
300
The reason is that the leaves on the trees are brown.
Why does the walkingstick change its color to brown in autumn?
300
This was a way to let another solar system know about us.
Why was a greeting put on Pioneer 10?
300
This is the best place to build a cool home in the desert.
What is underground?
300
Planning your moves ahead of time.
What is a strategy to win at checkers?
400
The walking stick does this to confuse its predators.
Why does the walkingstick play dead?
400
This shows others where to find our Earth?
What is the picture of the sun and planets?
400
This strategy has helped animals survive in the desert.
What is learning to live with Nature?
400
This has a greater memory than most players.
What is a computer?
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