👉 Watch the video of Sarah’s science experiment at Lamar Elementary School here!
Hello parents, teachers and students! Got too many candy hearts for Valentine’s Day? Make a jumbo popsicle stick catapult, and guess which liquid dissolves candy hearts faster!
Be sure to check out GMSA@9 on Wednesdays when Meteorologist Sarah Spivey does the demonstrations and explains the science behind it.
HERE’S WHAT YOU’LL NEED
- Candy conversation hearts
Popsicle Stick Catapults
- 10 jumbo popsicle sticks
- Rubber bands
- A plastic bottle cap
- Glue dots
Melting Candy Hearts
- Three clear cups
- Water
- Soda Water
- Vinegar
DO THE EXPERIMENT
Popsicle Stick Catapults
- STEP 1: Cut notches on two of the popsicle sticks. It should look like this ⬇️
- STEP 2: Stack the other 8 popsicle sticks onto each other, binding them on both sides with some rubber bands. It should look like this ⬇️
- STEP 3: Shove one of the notched popsicle sticks through the bottom of the stack and place the other notched popsicle stick on top. Bind these two together along the notches. Again, it should look like this ⬇️
- STEP 4: Using a glue dot, place the bottle cap at the top of the catapult. If you’d like to fortify your catapult, place additional rubber bands across the middle of the catapult. Your final product should look like this ⬇️
- STEP 5: Launch the candy conversation hearts from the catapult and see how far you
Melting Candy Hearts
- STEP 1: Make a hypothesis about which substance will dissolve candy hearts faster: Water, soda water, or vinegar
- STEP 2: Pour water, vinegar, and soda water in three separate cups
- STEP 3: Place 2 candy hearts in each cup and observe over time which dissolves faster. Could take 30 min to an hour.
SCIENCE WITH SARAH
If you’d like Sarah and David to come to your school and conduct a science experiment live on KSAT, fill out this form. “Winners” are selected at random.