Science - Do plants need water to grow?

We have learnt that germination is the process when seeds begin to grow into plants. 

With the question - do plants need water to grow, we have set up a simple test to see if this question is true. Now that we have realised that some plants do not need light to germinate and that seeds have their own food source, we are curious to find out the answer to this question. We will report back shortly!