ALWAYS check the license of images you are using for academic projects, BUT especially for any non-academic usages.
Oftentimes you can use copyrighted items for Academic pursuits, i.e. while you are a student you may use an image as an example in an essay or on a PowerPoint, BUT you should still give a credit and acknowledge the copyright owner and give a URL to the image. (I.e. "Creative Commons 10th Birthday Celebration San Francisco" by tvol is licensed under CC BY 2.0)
See Find Images You Can Share for details on how to search for items with "Creative Commons Licenses." BUT, if no license is mentioned, assume that the image is protected by copyright. Unless this is an Academic usage, and thus allowed under the "Fair Use" doctrine of Copyright Provisions, contact the owner or website to get permission, especially if you are using the image(s) for commercial gain or sharing with others.
There are 2 options for searching Google for images**
**ALWAYS know the license of images you use. READ the box to the left "Important - Copyrighted Images"
Option 1: Search a topic "dachshund puppies" at https://www.google.com/, click on Images, and then "Tools" to get various ways to narrow the results - Size, Color, Type, Time, and Usage Rights.
Option 2 - Start on the Advanced Image Search and fill in both sections of the form: 1) "Find images with" and 2) "Then narrow your results by." To see the ways to narrow your results click the down arrow to the far right of each field. For instance, expand "type of image" to show these options - any type, Face, Photo, Clip Art, Line Drawing, Animated.
Explanations for each field are in the right margin (not shown above) and on Google Search Help.
Navigate to Google Images google.com/imghp
Then Click on the camera icon
Finally, Search for a similar image on the Web in one of two ways:
1) Click "Paste Image URL" and put the URL of the image itself (not the website)
2) Click Choose File and upload an image from your computer (Uploading an image is called a "Reverse Image Search" This is discussed in the video below).