Scientific method of my invention

1. Scientific method of my invention

2. problem • My problem is my bag is full of book so i can’t put my snack

3. Purpose • Because to find a tools that help me to carry my snack

4. A bag that have a drawer and there are a wheel and they need some thing to help him to rool.

5. Finding info • I find out in internet that a drawer must be in the bottom the bag so the wheel can move and easy to open it .

6. Observation My observation in the internet and at my home it diffrent because my reasult is diffrent from the internet and the wheel can’t move • Inference • f the wheel is to much it will be sliery and hard to move

7. Hypothesis • First wheel we can move • Second we can move • Thrid we can move quiker

8. Materials needed • Material equipment • -sterefomsrew • - a glue srewdrievr • - a wood • -mand a lever

9. Variables • The independent variable (What I change) : the number of the wheel • The dependant variable (What I Observe) = the dragging of the drawer • Controlled variables (What I Keep the Same) the drawer material