Databases
Pebble Go Next will give you an overview for starting any research project. Middle school students need to log in differently than elementary school students.
Do NOT log in with Clever or Google.
Type jabes for the Username and school for the password.
To research Gravity, Moon and Tides, there are two articles to find. One is called "Gravity". The other is called "Moon". In the Moon article, use Ctrl-F to search for "tides".
Britannica School has more detail than Pebble Go.
To research Gravity, Moon and Tides, look in the article called "Tide" and also in the article called "Moon".
Books
The library has many books on space. Your teacher has others. These are excellent resources for finding information for your research.
Websites
NASA, the National Aeronautics and Space Administration, has a website for students called Space Place which provides simple explanations for many topics, including gravity.
This article from NASA's main website explains how the moon's gravity creates tides here on Earth.
The Conversation is an international news organization dedicated to providing information to the public. The series "Curious Kids" is written to answer questions submitted by children around the world.