How to use clipart in a project
Open the drawing you want and choose Download SVG. The file lands in your downloads folder with a name you can recognize, such as dog-clipart.svg.
Slides
In Google Slides or PowerPoint, use Insert and then Image, and pick the file. Drag a corner to resize it. The edges stay sharp because an SVG is a drawing, not a photo.
Documents and worksheets
Word and recent editors can insert an SVG the same way. If a tool refuses the file, open it in Inkscape or another free vector editor and export a PNG. Choose a transparent background so you do not get a white box around the drawing.
On a web page
Upload the SVG or the exported PNG to your site and write an alt attribute that says what the picture is. The alt text on each Clipart10 page is a starting point you can shorten.
Before you publish
Read the license. Original Clipart10 drawings can go in school work, client work, and products you sell. Do not resell the file itself or add it to a clipart bundle. If the page names an outside source, follow that source too.