Plants
Some redwood leaves make food while others drink water
The two types of leaves grow at different heights in trees at dry versus wet areas. They may help redwoods adapt to climate change.
MS-LS1-1
Conduct an investigation to provide evidence that living things are made of cells, either one cell or many different numbers and types of cells.
More Stories in MS-LS1-1
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Health & MedicineSickle-cell gene therapies offer hope — and challenges
Doctor Erica Esrick discusses existing treatments and an ongoing clinical trial for a gene therapy to treat sickle cell disease.
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Health & MedicineExplainer: What is sickle cell disease?
Gene mutations can alter an individual’s hemoglobin in ways that curl their blood cells. This can cause painful sickle cell disease.
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Health & MedicineExplainer: The body’s immune system
An army of cells — and their protein arsenal — work to keep us safe. Several squads of special forces possess unique superpowers to disable or kill intruders.
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LifeScientists Say: Cellulose
Cellulose is an abundant natural polymer found in plants and algae. It’s used to make everything from paper to clothing.
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LifeExplainer: Cells and their parts
Life as we know it depends on the coordination of structures inside cells — whether a living thing has only a single cell or trillions of them.
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AnimalsA new drug mix helps frogs regrow amputated legs
The treatment helped frogs grow working limbs useful for swimming, standing and kicking. It’ll be a while before people can do that.
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LifeScientists Say: Eukaryote
Eukaryotes are living things whose cells package their genetic material inside a pouch called a nucleus.
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AnimalsSee the world through a jumping spider’s eyes — and other senses
Scientists are teasing out the many ways the spiders’ vision, listening and taste senses differ from ours
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ChemistryExplainer: What are fats?
A fat molecule's three long chains of carbon and hydrogen atoms repel water, stash energy and keep living things warm — even in the bitter cold.