Evidence

Here are examples of different levels of scaffolding.

Level 1:

Here are some examples that suggest there is water in the air:

Clothes will dry when you hang them out in the air.
Rain comes out of the sky.
When you boil water, it gradually disappears. Perhaps it goes into the air.
Water drops appear on the surface of cold things. Perhaps the water comes out of the air.
On some days the air feels damp.

Give two more examples.

Level 2:

Pick the best answer.

There is no evidence that there is water in the air.
There is water in the air because there is water in everything.
There is water in the air because clouds are made of water and they form in the air.
There is water in the air because clouds hide the sun.

Level 3:

Pick three answers and fill in the missing idea.

Clouds show that there is water in the air because ____________________.
Rain shows that there is water in the air because ____________________.
If there were no water in the air, there would never be ____________________.
When you boil water, it gradually disappears. This shows there is water in the air because ____________________.
Clothes will dry when you hang them out in the air. This shows there is water in the air because ____________________.
Water drops appear on the surface of cold things. This shows there is water in the air because ____________________.

Level 4:

When scientists ask "why" questions, they are looking for evidence. Think of two examples. Explain how they suggest that there is water in the air.

Level 5:

When scientists ask "why" questions, they are looking for evidence. Describe examples and explain how they are good evidence for the phenomenon.