The best bike to buy for a nine year old active boy is a 24in-wheel bike with a 3-speed hub gear.
probably something like a guitar or a bike or a skateboard
In the sentence: Mark is the boy by the biggest bike,BY would be the preposition, however, BY THE BIGGEST BIKE would be the prepositional phrase.
a bike.
I'm a 14 year old 5 foot 6 inch girl and I use a 26'' bike. For a 5 foot 10 inch boy I would reccomend a 28'' bike, so there's plenty of room to grow into.
it would be 21 to 30 inch best idea
yes
It depends on your height and how you can control the bike. My first bike when i was eleven was a Honda CRF 150F.
You would measure a boy's weight in kilograms. Grams are more suited for measuring small, lightweight items.
Well a boy could have a purple bike he is still a boy their is no boy or girl bike they are all the same
It all depends on how big he is. If he is small for his age he will need a smaller bike or if he is big a larger one. Best thing to do is ask the attendent at the bike shop.
The energy transformation that happens when a boy rides a bike is from chemical energy stored in the boy's body (from food) being converted to kinetic energy as the boy pedals the bike. This kinetic energy then propels the bike forward, overcoming friction and gravity.