People and perhaps life itself might not exist without the moon.See how the heavens work on science channel.

What a dilemma,

Actuslly, more than you know. The relatively lsrge mass of the moon stabilizes the tilt of the Earth. Without it, the Earth would wobble around and totally screw up the constant seasonal climate changes thst allows for life to flourish on the planet.

That kid is going places. Get him in a science club, stat!

Women might menstruate at a different interval?

Great question I wonder if the moon keeps us just the right amount away/ close to the sun

We wouldn't exist

Without the Moon the darkside of the planet (night) would get so cold we would die or have to develop improbable habitation or other life would be dead. The Earth rotation speed would increase. It protects us from meteor impact .. I would think magnetic fields / tides / oceans all that is going to be out of bat.. What will control womens periods ? I Think we might all be very dead anyway .. Maybe life would be there if never a moon but kinda something very furry that lives underground lol.. life I think would be extreme - high gravity and going from hot to very cold fast. Shorter days meteors raining from the sky a lot!! think would be a right laugh!

Maybe we would've got to Mars by now since moon wouldn't have been an available space program goal.

I think this article has some interesting content that has not already been share in this thread.

[futurism.com]

Werewolves wouldn't exist. Oh, wait...

Well, if the moon had never existed no biggy, if it disappeared suddenly HELP!!!!!!

This reminded me of the comment by Bill O'riely talking to Richard Dawkins.
Bill; " tide goes in, tide goes out. Yall can't explain that, can't explain why"

LMAO

We are in an almost unimaginably lucky situation. We live in a delicate yet surprisingly long lasting (by our individual perceptions) balance of confluences between the gravitation and radiation, etc. of the sun, the moon and the rest of the universe.
I suppose it could be argued that with the huge number of stars and planets that seem to be there, it had to happen somewhere. But even given that, we have been incredibly lucky so far

I highly recommend a book by Eric D. Schneider & Dorian Sagan -- Into the Cool: Energy Flow, Thermodynamics, and Life although it's probably a bit high level for your grandson. But it talks about our situation with respect to several of the energy gradients in which we happen to reside.

Werewolves would have a deep, unknown sense of unfullfillment.

No eclipses either.
There may be knock on effects of not having tides. I've idly wondered if tidal rock pools could have acted as mixing vessels that might play a part in the early formation of life.

Tides would be so small, more frequent, and no major pattern to them as they would be mostly from the sun, but also other planets a little. Not sure how much life would have evolved differently, corals, inter tidal ecosystems are prolific, without them a lot less food for both terrestrial and marine species, would animals have evolved onto land as readily? woudl plants?

an interesting question

George Takei just posted a whole video about this on facebook. One of the things that surprised me was that it would affect the orbit of the earth. I don't remember the details now, though.