how can i describe to a 9yr old kid about the relationship with god/torah.

In one slide of a power point presentation that can only consist of approximately 5lines and five words per bulleted item without having the child confused and not understand me.

And then in another slide:
I have to describe:
The history of key sacred texts
also five lines and 5 words per bullet.

This site has a very simple explanation of Jews' relationship to God and the Torah. I suggest you take five of the 13 points that seem most important to you.

http://www.mechon-mamre.org/jewfaq/beliefs.htm

For the sacred text, you might just want to show the history of the Torah.

Most important book to Jews

Torah consists of five books:

Genesis, Exodus, Leviticus, Numbers, Deuteronomy

Given by God to Moses

Oral tradition; later written in Hebrew

For the first slide to describe the relationship with God/Torah to a 9-year-old:

1. God is like a loving parent.
2. Torah is a special book.
3. It teaches us good things.
4. We listen and learn from it.
5. God wants us to be happy.

In the second slide to describe the history of key sacred texts:

1. Torah is most important.
2. It has five books.
3. Genesis, Exodus, Leviticus, Numbers, Deuteronomy.
4. God gave it to Moses.
5. It was first spoken, then written.