1. Make a leaf painting: You can create a beautiful leaf painting by sticking leaves of different shapes and colors on paper. Bookmark making: Cut the leaves into appropriate shapes and thread them through the leaves to make bookmarks. Making greeting cards: Sticking leaves on cards can make unique greeting cards.

2. Make a collage: Cut the leaves into various shapes, and then stick them on paper with glue to make an interesting collage. Making dried flowers: flatten the leaves in a book and dry them to make dried flowers. Specimen making: You can make plant specimens by pressing leaves in a book.

3. Making kites: You can cut leaves into suitable shapes and string them together to make kites. Make necklaces and bracelets: You can make natural necklaces and bracelets by putting leaves on the thread.

The knowledge about leaves is as follows:

1. Leaf is one of the most common organs in plants, which bears important functions such as photosynthesis, respiration and transpiration. Photosynthesis is a process in which plants use sunlight, carbon dioxide and water to make nutrients, and leaves are the main place for plants to carry out this process. The morphological structure of leaves is most likely to change with different ecological conditions to adapt to the environment.

2. Leaves of different plants have different shapes, sizes and shapes. But as far as a plant is concerned, it is relatively stable and can be used as the basis for plant identification and classification. For example, a leaf is the main part of a leaf, which can have various shapes, sizes, colors and textures. The edges of leaves can be smooth or serrated.

3. Besides, leaves can be divided into three parts: leaves, petioles and veins. Leaves also release oxygen for human beings, provide food and shelter from wind and rain. At the same time, leaves are also the main places for trees to breathe. All this knowledge can help us deepen our understanding of nature. The color of leaves also changes with the seasons. In spring and summer, when there is plenty of sunshine, the yield of chlorophyll increases.