Community Helpers Science Ideas
Place hard boiled eggs in Coke overnight, the shells will yellow. In the morning, let the children brush the eggs with toothpaste and toothbrushes. They become white again!
We set up two centers side by side. One was the “police station” and one was the “doctor’s office”. Children were given a piece of paper to record information from both centers. In the police station, they recorded information such as name, add, phone, b-day, and they had to circle colors for eyes and hair. They also put their finger prints on the page. In the ‘doctors office’ they were weighed and measured and their heart rate was checked. They had a great time and then took home the papers after I had added a digital picture of each.
On my computer i made pretend fingerprint cards, on the top i put “(blanks) fingerprints.” Under that i made five boxes each labeled at the top; thumb, pointer, etc. The children and myself then used a stamp pad to place our fingerprints in the appropriate box. After we all examined our prints and talked about how everyone’s are different and police officers can help people by seeing them, we used contact paper to cover them on the science table. The children were able to go over and use the magnifying glass to examine them.
During Community Worker Week we put different sensory items inside latex gloves and let the children feel the differences. Examples of items are sand, water, air, hazelnuts (it looks like knuckles), oatmeal and oatmeal and water mixed together. Our children really liked the oatmeal and water! You can also weigh the filled gloves to see that even though they all fit in the same size glove they weigh different.
Children can view the affects of sugar on teeth. Take a piece of an eggshell. Overnight, soak one piece in each of the following orange juice, soda, milk, and water. Should see brown spots on the orange juice and soda shells. Can talk about cavities and relate to the need for dentist and dental visits.
Have children listen to heart beat and count number of beats in a 30 second time span (you time it). Have them run, jump, and/or hop in place for at least 1 minute and then listen to heart beat again. Ask them what is different, heart beat has speed up, and why they think the beat changed. Can have children listen to a friend’s.