Take picture of the moon and pic a new model
Answer:
Mahir noticed the plant he watered grew taller than those with less water
Explanation:in the process of the scientific method,an observation about an occurrence happens first before an hypothesis is formulated and tested .
Observation usually involves the the description of a phenomenon.
Tendons connect muscle to bone.
I'm assuming you mean the molecular compound

and it's name is Hydronium. Hope this helps :)