Only use Gatorade or G2 bottles for the sensory bottles they are a heavier plastic so they hold up better and keep a unison look so everything looks good. They come in different sizes you can find smaller ones for small hands if you need to.
Make sure to ALWAYS seal your bottles securely! I cannot emphasize this enough. Unless you want your bottle opened and the contents poured out. SEAL IT… with glue. Duct tape can be peeled off by a determined kiddo. Glue is much harder for them to open up.
Fill a bottle 2/3 full with sand, salt, rice or other material below I used small pieces of Tissue paper. Add five to ten small objects to the bottle and shake it. Challenge the children to find all of the hidden objects. I find its best if you attach a card with the hidden items so the kids know what’s inside it makes them look harder to find each item.Variation: Hide Sight words, numbers, etc.
For a list of ALL my amazing DISCOVERY BOTTLE IDEAS click the link or the image below