Great websites to find kid’s science experiments:
http://www.sciencekids.co.nz/experiments.html
http://sciencebob.com/category/experiments/
http://redtri.com/classic-science-experiments/
http://www.stevespanglerscience.com/lab/experiments
http://www.schoolofdragons.com/how-to-train-your-dragon/science-experiments
https://explorable.com/kids-science-projects
http://mentalfloss.com/article/53612/15-science-experiments-you-can-do-your-kids
http://www.kidspot.com.au/schoolzone/Science-experiments-Science-experiments-for-kids+4372+314+article.htm
http://videos.kidspot.com.au/categories/science