Plant Science+
Earth & Soil Systems
Farming & Technology
Animals & Ecosystems
Global Food & Agriculture
100

What gas do plants take in during photosynthesis?

What is carbon dioxide?

100

What is the layer of soil that contains the most organic matter and nutrients?

Topsoil

100

What invention allowed farmers to plant seeds faster and more evenly?

Seed drill

100

What do we call animals that eat only plants?

Herbivores

100

What is the main food crop grown in tropical climates like Brazil and Indonesia that is used for cooking oil?

palm oil

200

What plant structure moves water from the roots up through the stem?

Xylem

200

What is the process called when water or air carries soil away from an area?

Erosion

200

What tool do farmers use today that uses satellites and computers to plan planting and fertilizing?

GPS technology / precision agriculture

200

What do we call an environment where plants and animals interact with each other?

ecosystem

200

What is the largest exported agricultural product from the United States?

soybeans

300

What part of the flower produces seeds after pollination?

Ovary

300

What natural resource forms soil over thousands of years through weathering of rocks?

Bedrock

300

What machine separates grain from the stalk after harvesting?

Combine or thresher

300

What type of insects are essential to crop pollination and help produce one-third of our food?

bees

300

What protein-rich grain from South America is known as an “ancient grain”?

quinoa

400

What is the name of the tiny openings on leaves where gases enter and exit?

Stomata

400

What is the term for the mixture of sand, silt, and clay that is best for agriculture?

Loam

400

What is the name of the practice of rotating different crops in a field each year to protect soil?

Crop rotation

400

What is the process of selecting the best animals to breed for desirable traits?

selective breeding

400

What term describes a food grown and eaten during its natural growing season in a local area?

Seasonal food

500

What type of plant reproduction happens without seeds, using runners, bulbs, or cuttings?

Asexual reproduction (or vegetative propagation)

500

What is the term for tiny living organisms in soil that help break down matter and improve soil health?

Decomposers (like bacteria and fungi)

500

What is the term for growing plants in water without soil, often indoors?

Hydroponics

500

What is the term for animals that help control pests naturally without chemicals?

biological control agents

500

What is the name of the United Nations agency that fights world hunger and supports agriculture?

FAO (Food and Agriculture Organization)

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