27Sep
2017
0

Fruits and vegetables dehydration

Experimental study of fruits and vegetables dehydration. Dehydrated fruits and vegetables are tasty and healthy snacks, which makes this STEM project enjoyable. Children will learn and explore interesting scientific concepts about water content in fruits and vegetables.

Some fruit and vegetables that we eat contain lots of moisture, and some have less than others. Before you start the project ask children to identify the difference between dried and fresh fruit. Discuss which fruits they like best and whether they prefer the dried or fresh version.

You need: any fruits and vegetables (we used carrots and apples), plates, scales.

What to do? Slice carrot and apple. Arrange the carrots and apples on the paper plate, weigh them and record their weights. Keep the fruits and vegetables under sunlight. Traditionally, fruit and vegetables were dried in the sun for several hours or days until the moisture had been removed.

Dehydration apples Dehydration carrots

Alternatively, you can use a proper dehydrator.

After some time when the fruits and vegetables are dry, measure the weights again and record them.

Interesting facts: Fruit dehydration has been around for hundreds of years.

When ancient Egyptian kings died, dried fruits were buried in their tombs with their treasures.

Throughout history, dried grapes have been highly prized. They were used to pay taxes in the days of King David.