![\"\"](\"https:\/\/blogs.glowscotland.org.uk\/ea\/public\/homelink\/uploads\/sites\/19547\/2023\/03\/25075517\/BAAE8E60-EE9B-4888-82A1-B4C20D440D26-300x225.jpeg\")
<\/p>\nThis is the beginning of our STEM homelink block where we will be providing the children with fun activities to promote STEM based learning at home. We will post a different activity each week for a 4 week block.<\/p>\n
For our first activity we will experiment with some resources to try and create a secret message or picture by creating invisible ink.<\/p>\n
What you will need: a lemon, a bowl, paper, a cotton bud and a light bulb or a crayon.<\/p>\n
Here is how to make our invisible ink:<\/p>\n
Squeeze the lemon juice into a bowl. Mix gently. Dip the cotton bud into the liquid and write a message or draw a picture on the paper.<\/p>\n
Let the liquid dry completely so that the message or picture is invisible.<\/p>\n
To share your secret or to see your picture hold it close to a lightbulb with an adult’s help. The message will be revealed.<\/p>\n
If you don\u2019t want to use a heat source then can also sprinkle salt over you paper when the lemon juice is drying. Then brush the excess salt off when the paper is dry and use a crayon to colour over your work to reveal the secrete.<\/p>\n
Encourage your child to try and predict what will happen when their paper is held up to the light bulb or when you colour the paper with a crayon.<\/p>\n
The lemon juice will change colour when it is exposed to a slight heat. This is a chemical reaction.<\/p>\n
<\/p>\n
Please share any of your invisible ink messages or pictures with me. You can send a photo of your work to easherrie.devlin@glow.sch.uk<\/p>\n
You can also upload a photo to your learning journal or bring in your invisible ink work and we can look at it in the ECC.<\/p>\n","protected":false},"excerpt":{"rendered":"
This is the beginning of our STEM homelink block where we will be providing the children with fun activities to promote STEM based learning at home. We will post a different activity each week for a 4 week block. For our first activity we will experiment with some resources to try and create a secret … Continue reading STEM Home Link<\/span>