A gardener finds dark crumbly bits of old leaves in soil around bean plants. What part of soil is this, and why does it help plants?

A plant pot has loose soil with small spaces that are not filled with water. What soil ingredient fills many of those spaces and helps roots stay healthy?

Mia rubs a dry soil sample between her fingers and feels tiny, hard, gritty grains. What soil component is she feeling?

After rain, a soil sample feels damp and plants nearby perk up. What component of the soil are the roots taking in?

A forest soil sample has pieces of dead insects, old leaves, and broken twigs mixed through it. What soil ingredient do those remains become as they decay?

Jalen packs soil tightly in a cup, and a seedling planted in it grows poorly. What is the packed soil most likely missing?

A teacher pours water on garden soil rich in dark decayed material. Some water stays near the roots instead of running away at once. What ingredient helps?

Under a hand lens, a soil sample has hard grains of many colors, such as tan, pink, and gray. What does this most likely show about the grains?

A gardener mixes compost into poor soil before planting tomatoes. What part of soil is the compost most like after it decays?

After many footsteps, soil near a trail becomes hard, and rain puddles on top. What part of healthy soil has been squeezed out?

A student says soil is just crushed rock. Which statement best describes what soil is really made of?

A seedling in very dry soil wilts even though the soil has rock grains and humus. What soil component does the seedling need most right then?

A bare rock ledge cracks, tiny pieces break loose, and fallen leaves decay on it year after year. What process is forming soil there?

A new garden bed on rocky ground has only a thin soil layer after several seasons. Why did so little soil form?

A storm washes topsoil off a bare hill. Why is losing that soil a serious problem for the land?

Small roots grow into cracks in a rock. As the roots grow thicker, what happens to the rock?

Two nearby fields get the same storms. One kept a cover of grasses, and the other stayed bare and lost much of its soil. What does this show about soil?

Deep soil lies under an old forest, while a nearby bare rocky area has thin soil. What helped the forest soil become deeper?

A road cut exposes hard rock with almost no loose material on top. Why is there little soil there?

A farmer plants clover between crop seasons to cover the field. Why can protecting the soil surface help?

Leaves pile up under shrubs each fall. Over time, what change makes those leaves part of the soil?

A playground built on fresh fill has little good soil for trees. What would slowly improve the soil over many years?

A desert plant rots if its roots stay wet. What soil type would help water drain away fastest?

A vegetable garden needs soil that holds some water but also lets air reach roots. What soil type is usually best?

A student wants to line a small garden pond so water does not drain out quickly. What soil type would hold water best?

A bean plant grows poorly in soil that stays sticky and wet for days after rain. What problem does clay soil often cause?

A class compares sand and clay soil samples: sand dries out quickly, while clay stays wet. Why does sand dry faster?

A school wants soil for a new flower bed that keeps moisture without staying soggy. What should they choose?

A potted herb wilts each afternoon in sandy soil. What change would most likely help the roots get water and air?

A rainy soccer field has slippery puddles because the soil holds water and drains slowly. What soil type is likely near the surface?

A rosemary plant needs soil that stays fairly dry between waterings. What soil trait is most helpful?

Seedlings in dark, crumbly soil grow better than in pure sand because roots get water, air, and nutrients. What soil type fits this description?

A town uses nearby trees to make boards for houses and fibers for paper. What resource is the forest providing?

A shaded forest has nests, burrows, and many plants growing under tall trees. What important resource does the forest give wildlife?

Workers remove trees from a steep hillside, leaving bare soil before a rainstorm. What is most likely to happen to the soil?

A stream beside a cleared forest turns muddy after heavy rain. What caused the water to become muddy?

A park keeps a strip of forest between a playground and a creek. Why is that forest strip useful?

A builder clears trees and covers land with pavement. How can this change the movement of rainwater?

A community plants young trees after harvesting older trees for wood. Why can this help keep forests as a resource?

A school studies a forested area near a stream. Which is one way the forest helps the land around it?