Learning About Leaves

Learning About Leaves Encyclopaedia Britannica Junior Films Time-lapse photography poplar leaves growing - buds opening - red oak leaves budding. Kids look at leaves in forest - press leaves between books & paste into scrapbook. Pine trees. Clover leaf. Mowing lawn. Time-lapse grass growing. Cattle grazing. Vegetable crop in field w/ green leaves. Leaves boiled in water & green colouring dissolved in alcohol - chlorophyl. Scientist? conducting experiment w/ plants. CU mushroom - no chlorophyl to make own food. Plant grown in dark cupboard - no green. Animations of green leaf absorbing food & cross-section leaf changing carbon dioxide into sugar. Experiment w/ iodine showing starch created by leaf when grown in sunlight as long as chlorophyl present - starch grains seen through microscope. Field of wheat; seeds removed. Time-lapse plant growing, leaves follow light when moved. Dead corn plants after frost. Trees w/ red leaves in Fall. CU twigs from vars trees w/ different-sized scars where leaves fell off. Dead Autumn leaves blowing over street; leaves on bonfire; man uses dead leaves to enrich soil. Evergreen trees. Nature. Science. Photosynthesis.