Plant Basics
This plant structure anchors the plant and absorbs water and nutrients.
What are roots?
This is the primary energy source used during photosynthesis.
What is sunlight?
This is the upper layer of soil where much organic matter is found.
What is topsoil?
The "N" in N-P-K represents this nutrient.
What is nitrogen?
This measurement can be taken regularly to determine how much a seedling has grown.
What is plant height?
This green pigment helps plants capture sunlight.
What is chlorophyll?
Plants take in this gas during photosynthesis.
What is carbon dioxide?
This soil type contains a useful balance of sand, silt, and clay.
What is loam?
The "P" in N-P-K represents this nutrient.
What is phosphorus?
Dry, moist, and wet are three descriptions used to record this soil condition.
What is soil moisture?
This plant structure is the primary location of photosynthesis.
What is a leaf?
Plants release this gas as a product of photosynthesis.
What is oxygen?
This soil property describes the relative amounts of sand, silt, and clay.
What is soil texture?
The "K" in N-P-K represents this nutrient.
What is potassium?
Yellowing leaves could indicate that a plant is experiencing this general condition.
What is stress or poor health?
These tiny openings in leaves allow gas exchange.
What are stomata?
This process describes a seed beginning to grow.
What is germination?
This number tells whether soil is acidic, neutral, or alkaline.
What is pH?
This nutrient is especially associated with leafy green growth.
What is nitrogen?
Light, water, nutrients, temperature, and space can each become this when there isn't enough for proper growth.
What is a limiting factor?
This tissue transports sugars produced by photosynthesis throughout a plant.
What is phloem?
This process describes water vapor leaving a plant through its leaves.
What is transpiration?
This process removes and transports soil through wind or water.
What is erosion?
Farmers can use this process to determine nutrient levels and pH before deciding what fertilizer to apply.
What is soil testing?
Changing only one condition while keeping the others the same allows students to investigate this type of factor.
What is a variable?