Sativa

Commonly Associated Effects: Sativa plants are thought to make you high and give you more energy. Helps you relax, focus and feel motivated, so much better during the day, when you communicate, play, work or run errands .
Indica
Indica plants have wider leaves and a shorter and stockier plant. These plants are also now more properly classified as broadleaf cannabis varieties.
Commonly Associated Effect: Indica is often referred to as "in-da-couch" because it is widely believed to have more of a sedating, "couch" effect.
Best used for relaxation, watch movies or read a book before sleep.
How to tell the difference between Indica and Sativa?
To tell the difference between Sativa and Indica buds, you just need to understand the way the plants grow.
Sativa buds, like plants, tend to be longer and thinner. They can be softer and fluffier, so they won't weigh as much as Indica buds.
In contrast, Indica buds are denser and more bulbous because they grow in a denser and shorter formation. So your 3.5g of Indica may look like it's less than 3.5g of Sativa.