There are more then 35,000 Kanji characters in the Japanese language. A lot of them are obscure and not commonly used. I doubt there is a website that has all of them. You can look at the JLPT project site and there will be a lot of Kanji, all useful.
Kanji can be spelled two different ways. One way is the hiragana version: かんじ The kanji version of the word kanji would look like this: 漢字 The katakana version is not used in the proper Japanese text but katakana of kanji would look like this: カンジ Again, the katakana version is not used in proper Japanese text.
The kanji (Chinese symbol adapted by Japanese) for death is 死 (pronounced 'shi').In hiragana (basic syllables) this is し - you will almost always see the kanji except in material such as books or games produced for children which does not use kanji.(If you cannot see the above symbols, you will need to install a Japanese language pack.)
tree looks like this in kanji: 木 pronounced ki.
蜂蜜 Hachimitsu this is the stuff bees make
You can start from the Japanese 1st grade level, then to the 2nd grade level, and work yourself upward that way. Search Google for "Japanese 1st grade kanji" or something similar. If you learn some basic kanji characters, you will be able to read basic Japanese text, and from there, you can look up unfamiliar kanji in a Japanese dictionary like jisho.org. However, there is no "order" to learning kanji, and you can learn in whatever order you please.
7 is called na-na(In kanji 七) in japanese.
Well, English is a European language, and Japanese is an Asian language. When each language / writing system was created, they had most likely no contact what-so-ever with each other. If you and a friend had to create your own writing systems without knowing anything about the others, I'm willing to bet they would look nothing alike.
Japanese language uses 2 alphabets (hiragana and katakana) in addition to more complex characters that are derived from the Chinese written language. Kanji (Japanese characters) are the same as Chinese characters.
Only Japanese names (and possibly Chinese names) are written in kanji, though a Japanese person may be able to choose out some good characters from the 4,800+ kanji characters in existence. If you want to know your name in KATAKANA (foreign words writing), it's ダニエル.
English meaning: Rain Romaji (Roman writing): Ame Hiragana: あめ Kanji: 雨
In kanji (Chinese characters): 狐 In hiragana: きつね In katakana: キツネ