What does a plant need to grow?
Soil, water and light.
We planted 4 pots of cress.
We gave no water to one pot. These seeds didn't even begin to grow.
We gave no soil to one pot (we gave it tissue instead). These seeds are growing, but not very well.
We gave no light to one pot. These seeds are growing, but not very well, and they are turning yellow.
The final pot of seeds is growing really well.
We can't wait to see what will happen next week.