Thursday, August 9, 2012

INVISIBLE LIJNK LEMON CITRUS LIME


Invisible Ink: A Citrus Painting Experiment
Can you tell me what you think? I’m playing around with my header design (procrastinating away from other important things, no doubt) and would love to hear your opinion on it. Do you like it? Is it legible? Does it need anything? What do you think about the sub-heading? When you think about Tinkerlab, what kind of tag-line comes to mind?
I also found a cool, new recipe card feature (below) that I’m testing out today, and I’d love to get your thoughts on it. It will allow you to print out the recipe for this project and store it with your recipe cards. Do people still print recipe cards? Is it useful? Gimmicky? Helpful? Thanks!
It’s summer and we’ve been doing a lot of citrus juicing in our home. Between my 4-year old expert juice squeezer and my almost 2-year old juice taster,  our simple and inexpensive juicer has been hard at work.
invisible ink science activity kids
While little Rainbow napped, Nutmeg and I gathered materials and set up the project. We talked about how we’d have to reveal the ink (lime juice) with the high heat of an iron or hair dryer, and she couldn’t wait to get started. She loves dangerous tools.
invisible ink citrus kids
We gathered our ingredients.
Here’s the full recipe:
Invisible Ink: A Citrus Painting Experiment
Print
Recipe type: Science
Author: Rachelle
Prep time: 5 mins
Making time: 20 mins
Total time: 25 mins
Lemon juice is acidic, and acid weakens paper. When paper is heated, the acid burns and turns brown before the paper does.
Art + Science Recipe
  • Lemon or Lime Juice
  • Paper
  • Paint brush or Q-tip
  • Iron
Instructions
  1. Squeeze lemon or lime into a bowl.
  2. Paint the juice onto your paper with a paint brush or Q-tip.
  3. Wait for the paper to dry.
  4. Heat the paper with an iron, hair dryer, light bulb, or other heat source. Be careful that you don’t hold it there to long, as it could burn the paper.
Notes
Experiment with other liquids: milk, orange juice, white wine, vinegar, and apple juice are good bets.

invisible ink citrus lemon lime kids
Just as we were getting started, baby R woke up to join us. She’s 22 months old now, and enjoyed the sensory experience of squeezing the limes with her bare hands, and then licking her fingers. According to my mom I used to eat lemons right off our tree, so this wasn’t too much of a surprise.
invisible ink lemon lime juice
The girls experimented with different colored papers and brushes. Afterwards I realized that Q-tips would have been perfect for this project, but we enjoyed the challenge of small watercolor brushes.
invisible ink citrus lemon lime kids
The papers dried pretty quickly on this warm day and we were able to get right to the fun part of burning the acid with heat. N’s grandma blows her hair dry every day, and N is obsessed with this tool. Obsessed. We ran the heat on the paper for about a minute with little success. I never blow dry my hair and have a cheap blow dryer for projects like this, and maybe that’s why? In any case, we decided to move on to the iron.
invisible ink citrus lemon lime kids
I folded a thick towel, placed the art on top of it, and she ironed away. In most cases an ironing board would have been better, but ours pulls awkwardly out of the wall and it’s too tricky to get the three of us around it safely. This worked perfectly and only took a few seconds to show its results.
invisible ink citrus lemon lime kids
N’s picture of her and her dad (he’s above her head, slightly visible in all his heated lime acid glory).
invisible ink citrus lemon lime kids
I really like how the abstracted images turned out and wished I had joined them once I saw how cool these looked. I usually join in when we’re creating and somehow forgot to on this round.

How about you? Do you find yourself doing projects with your kids, or are you in more of the facilitator mode? And what do you think about the new recipe card tool and header?

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