Howcast - Learn how to explode a plastic bag using baking soda and vinegar with the instructions in this Howcast science project video.

Howcast - Learn how to etch a star on your coffee in this Howcast video about latte art.

Howcast - Learn how to etch a flower on your coffee in this Howcast video about latte art.

Howcast - Learn how to etch swirls on your coffee in this Howcast video about latte art.

Howcast - Learn how to make a wave design on your coffee in this Howcast video about latte art.

Howcast - Learn how to trim your bangs in this hair tutorial from Howcast.

Howcast - Learn how to add and style images and text in this HTML tutorial.

Howcast - Learn how hormones affect fertility in this Howcast video about infertility.

Howcast - Learn if insurance covers in vitro fertilization procedures and find out how much fertility drugs cost in this Howcast video about infertility.

Howcast - Learn how to make chocolate ganache in this Howcast food video featuring pastry chef Katie Rosenhouse.

Howcast - Pick up three tips for creating a large graffiti mural with this Howcast video.

Howcast - Learn how to balance letters when you write a name in graffiti with this Howcast video.

Howcast - Let tennis pros Joe Perez and Kirk Moritz teach you how to serve in this Howcast video.

Howcast - Learn how to play major scales in this Howcast video about how to play a pedal steel guitar.

Howcast - Learn how to do hula hoop cat eyes from hula hooping expert Natalie "McFancy" Wise in this Howcast video.

Howcast - Learn how to do hula hoop isolations from hula hooping expert Natalie "McFancy" Wise in this Howcast video.

Howcast - Learn the five fundamentals of indoor rock climbing from climbing expert Cliff Simanski in this Howcast video.

Howcast - Learn the difference between a djembe and a conga from the musicians at Wula Drum in this Howcast video.

Howcast - Learn how to make a full metal jacket from the bartenders at Barcelona Bar NYC in this Howcast video.

Howcast - Learn how to make eye contact from manners expert Faye de Muyshondt in this Howcast video.

Howcast - Learn how to do a fakie on a BMX from expert Francisco Colón in this Howcast video.

Howcast - Learn how to slalom on rollerblades from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn how to do a heel toe on roller skates from former World Champion speed skater Gypsy Lucas in this Howcast video.

Howcast - Learn how to curl a soccer ball from Coach Frank Hauser in this Howcast soccer video.