A game of cricket involves two teams, consisting of 11 players each, and that each player is allowed to bat, bowl and field. Someone who bats is called a batsman, someone who bowls is called a bowler, and someone who fields is called a fielder.
A batsman's duration on the field of play is called an innings and, when ended, is called a dismissal. A batsman bats in front of a wicket, which is made up of three stumps and two bails. A stump is a vertical piece of wood which is placed in the ground. All stumps are of equal length. The bails are smaller, but are also of equal length. The first bail is placed horizontally across the top of the first and second stump, and the second bail is placed across the second and third stump. A bowler's job is to dismiss a batsman. If a bowler hits his stumps, then the batsman has been dismissed and his innings has been completed. The batsman is also classed as being dismissed if he is caught by a fielder, whose job is also to block and retrieve the ball.
Hitting a 'six' is when you hit the ball and it goes over the boundary without bouncing, basically like a home run, if it bounces once or more before it goes over the boundary it is a 'four', another way to score runs is for the two batsmen run to each side of the wicket, the fielder can get them out this way aswell if one of the batsman doesn't make it in time to the other side and the fielder hits the wicket.
There's also a keeper in the game, just like baseball, his job is to catch the ball, and stop from going away anywhere so that the other team can't get extra runs, he's also effectively another fielder, and if you want a success at a run out, throwing it at the wicketkeeper is your best bet.
To get a batsman out, the bails have to be dislodged by the bowler, or if a fielder catches a batsmans shot which is in the air. There's also 'LBW', meaning 'leg before wicket', this is when the batsman has his leg in the way preventing the ball from hitting the stumps, if the 'Umpire' (like a referee) thinks that the ball is going on to hit the wicket if the batsman wasn't in the way, then he's given out.
When you hear the term that the bowler has finished his 'over', it means that he gets to bowl 6 balls in a row, bowling 6 balls = an over, and then another bowler comes in to bowl an over.
In Test cricket, there is no limit in how many overs a bowler can bowl, but in a 50 over game, the maximum a bowler can bowl is 10 overs, and in a 20 over game a bowler can bowl only 4 overs. A batsman however can bat as long as he wants until he gets out, or when he allocated overs are finished.
You don't have to get the whole team all out to win the game, especially in limited overs cricket (50 over and 20 over games), as if you bat first and have more runs than the other team in the allocated amount of time you've won the game.
Test is a little different, in test cricket you have 5 days, both teams bat twice and field twice over these 5 days, it's a little harder to explain, sometimes games end in a draw because there are not allocated overs, even if you don't have enough runs and the 5 days are over it will end in a draw as long as the team batting second hasn't had all their batsman all out.
Test cricket all the players wear white, in the other formats, the teams wear their teams or countries colours.
Both teams bat and field, unlike baseball, the batsman can hit the ball anywhere around the pitch to score runs.
The 'Ashes' is played in the format of test cricket. The boring format to the causual viewers because there is less intent to be aggressive as you have a lot of time and are less restricted.