What lives in soil, water, food, and on our bodies but is usually too small to see? This curious kids’ song introduces bacteria as tiny single-celled organisms, explores how certain bacteria help make yogurt, and explains how washing with soap and water reduces the spread of microbes.
Original explanations based on the cited sources.
Bacteria are single-celled organisms without a cell nucleus. Many are useful or harmless; only some cause disease.
Sources
Microorganisms are organisms usually too small to see without a microscope, such as bacteria and yeasts. They are not all single-celled or disease-causing.
Sources
Text from the recording’s subtitles.
3:05Follow used handwashing water from a household drain into the sewer network and a treatment plant, then onward to a river that may reach the sea. This lively children’s song introduces screens, settling particles, helpful microorganisms, and the important fact that treated wastewater is not drinking water.
2:29A catchy counting song shows subtraction by moving 3 of 8 apples into a basket and counting the 5 that remain. Children can then check the answer by putting the group back together: 5 + 3 = 8. Made for ages 7–10.
1:57Lena zeros the scale with an empty bowl, then measures dry beans in steps of 100 grams. Children can count ten colorful tokens and see why 1000 g and 1 kg describe exactly the same mass.
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