Fourth Grade, Plant Biology Science Experiments (64 results)

Around St. Patrick’s Day the color green seems to be everywhere, from hats to shamrocks and much more in between.  For this St. Patrick’s Day, you could show off your own green creation… by cloning a plant!  Many Sci-Fi tales of cloned organisms have been based upon the scientific method for cloning animals or plants.  In the real world, the cloning of plants is a common method used in modern agriculture.  How do you clone a plant?  In this activity,… Read more

Do you like to climb trees? The branches of trees are what make them so fun to climb. Each branch starts out as a tiny shoot that grows out from a stem. How is the growth of shoots along a stem regulated? Read more

Every spring, gardeners around the world get ready to plant their summer gardens. They turn the soil over in their garden plots and add nutrients to the soil. Then they plant their seedlings and wait for nature to provide a bounty of fruits, vegetables, and flowers. But nurturing the garden doesn't stop there. In order to get lots of fruits and vegetables, the gardener must eliminate factors that can hurt the plants. Sometimes, chemicals in the soil from other plants and trees can hurt a… Read more

Leaves grow in a different pattern than stems and shoots. They do not elongate along one axis, but instead spread out over time. Do all regions of the leaf grow equally? You can use markings on different regions of a growing leaf to see if the whole surface grows, or if growth is focused in a particular region, like the veins or edges of the leaf. If you look along a leafy stem, you may notice that leaves at different positions along the stem are different sizes. You can do an experiment to… Read more