This document contains a science experiment where Alex adds the same amount of water to different types of soils in funnels. The key thing to keep the same is the amount of water added. Water flows best through sandy soil, while clay soil does not let water through easily.

1. Circle the correct answer:
Alex add in the same amount of water into each funnel which contains
different types of soil.
1. What to keep the same in this experiment?
(The amount of water / The type of soil )
2. Water flows very well through (clay soil / garden soil / sandy
soil).
3. (Clay soil / garden soil / sandy soil) does not let water through
easily.