We challenge you to science experiment or brain teaser each week - can you solve them?
This Weeks Challenge
Week Eight: Melting Ice
What color will melt an ice cube the fastest?
1. Cut the same size paper from different sheets of colored paper.
2. Place each piece of colored paper in the sun. (Sidewalk or driveway works)
2. Use ice cubes that are the same size and shape, and place one of them on each of the pieces of colored paper.
3. Watch and Observe - do the ice cubes melt faster on certain colors of paper?
What if you can touch only 2 toothpicks to re-arrange the goal post so the circle is on the outside?
Lay out the toothpicks like shown in the picture so they form a goal post shape. Put a coin in the center, similar to the black circle in the picture. How can you rearrange the toothpicks, with only touching two toothpicks, so that the coin appears on the outside of a goal post shape? (In other words, only touching two toothpicks, make another goal post shape where the coin is on the outside instead of inside the goal).
For this week's science experiment we try to answer the question, "What happens if the primary colors "walk" into each other?"
Steps 1. Set 5 cups in a row 2. Fill the 1st, 3rd, and 5th cups halfway with water 3. Add 5-10 drops of red food coloring to the first cup, 5-10 drops of food coloring to the 3rd cup, and 5-10 drops of yellow food coloring to the 5th cup. 4. Place a folded paper towel between each cup (like the picture) 5. Wait... and then watch the water walk
Do you need to send a secret message to someone? For this week's What if Wednesday, we create invisible ink. You will need: A piece of paper, a q-tip, lemon juice, and a heat source (lighter, iron, hairdryer).
Steps 1. Dip your q-tip in the lemon juice and write your message on the piece of paper. 2. Let it dry... 3. Use a heat source to reveal the invisible ink - be careful not to burn the paper!
You will need three sheets of paper that are all the same size.
1. Fold and tape a piece of paper into a square column,
2. a cylinder (circle column),
3. and a triangular prism (triangle column).
4. Place books one at a time onto each column, making sure to use the same sequence of books each time for each of the three columns.