<script type="text/javascript" src="<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js" />
<script type="text/javascript" src="script.js"></script>
First, remove the extra src="<script inside your <script> tag.  Also "close" it with a </script> tag...
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript" src="script.js"></script>
Second, place the script includes at the end of your <body> section, just before the </body> tag:
    ....
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <script type="text/javascript" src="script.js"></script>
</body>
OR, anywhere inside your <head> section:
    ....
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <script type="text/javascript" src="script.js"></script>
    ....
</head>
And finally, make sure the URL path is correct for your version:
http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js
It's always smart to link to a full version.  Otherwise, if the code at the URL is updated, your site could suddenly break without warning.
If you make the changes as indicated above and add a <title> element into your head section...
<head>
    <title>Title</title>
    ....
... your code will then pass HTML validation.
http://validator.w3.org/check