MS-LS1-5

Construct a scientific explanation based on evidence for how environmental and genetic factors influence the growth of organisms.

  1. Animals

    Scientists Say: Marsupial

    These mammals are known for riding around in a pouch on their mother’s belly, where they continue developing after they’re born.

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  2. Health & Medicine

    Gender-affirming care improves the mental health of transgender youth

    Several states have tried to restrict access to gender-affirming health care for transgender youth. That goes against medical guidelines.

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  3. Health & Medicine

    A single vape session can harm immune cells in the body

    Vaping creates molecules in the body that can attack cells and cause damage.

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  4. Health & Medicine

    Starting schools later leads to less tardiness, fewer ‘zombies’

    Students attending schools with later start times feel more awake during the day and are less likely to oversleep and be late for class.

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  5. Animals

    Let’s learn about elephants

    Check out five wild facts you may not know about a familiar animal: the elephant.

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  6. Health & Medicine

    Cannabis may alter a teen’s developing brain

    Marijuana use between ages 14 and 19 was linked to faster thinning of brain regions important in decision-making.

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  7. Microbes

    Let’s learn about microbes

    There may be a billion species of microorganisms on Earth — but scientists have only discovered a small fraction of them.

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  8. Microbes

    Several plant-like algae can morph into animal-like predators

    Single-celled green algae swim through water as free cells. Most use only photosynthesis for their energy. But not all of them, a new study shows.

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  9. Plants

    Scientists may have finally found how catnip repels insects

    The plant deters mosquitoes and fruit flies by triggering a chemical receptor that, in some animals, senses pain and itch.

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  10. Brain

    Teen depression linked to how the brain processes rewards

    Depression in teens alters their brains’ pathways in ways that may put those kids at risk of lifelong mental-health problems — unless they get help.

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  11. Microbes

    Some microbial hitchhikers may weaken body’s attack on COVID-19

    New research identifies an altered mix of microbes in the body — ones commonly seen in people with poor diets — that may worsen coronavirus disease.

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  12. Space

    Space travel may harm health by damaging cells’ powerhouses

    Biochemical changes after going to space suggest that harm to cells’ energy-producing structures, called mitochondria, could explain astronauts’ health issues.

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