What is a plant?
A plant is a type of organism that cannot on its own change its current location and that makes its own food through the process of photosynthesis.
What is a primary producer?
A primary producer is an organism that makes its own food using the process of photosynthesis.
How do plants make food?
Plants use the energy from the sun to change carbon dioxide collected from the atmosphere along with water to make sugar that is the food that provides the energy to plants. Oxygen gas is also made through this process and is released into the air. This overall process is called photosynthesis.
What does the sun provide to plants?
The sun provides the energy needed for the chemical reaction of photosynthesis. The sun also provides the heat that warms the plant.
What is growth?
Growth means for a living organism to increase its physical size or complexity.
What is in air?
The main substances that make up air on Earth are nitrogen gas, oxygen gas, carbon dioxide gas, and water vapor.
What is the function of a plant’s leaves?
The function is the leaves is to intake carbon dioxide and to serve as the site where photosynthesis happens.
What is the function of a plant’s roots?
The main function of the roots is to hold the plant in place and to absorb water and nutrients from the soil. The roots also aid in the uptake of oxygen gas into the plant that the plant needs to undergo respiration.
What is respiration?
Respiration is the process in which food molecules are combined with oxygen gas to provide energy for the plant.
How do plants prevent water loss?
Plants prevent water loss in several ways. These include opening their pores for gas exchange only at night, storing water in their stems, and having a waxy outer layer that reduces water loss.
Here are some definitions to help you in your Grade 3-5 Lesson 1 investigation.
Temperature - how hot or cold something is
Heat - adding energy to something to change the temperature
Treatment - something given or added in an experiment
Doses - the amount of something given or added
Growth - an increase in the size of something
Height - how tall something is
Centimeters - a unit used to measure height
Predictions - a statement of what will happen in an experiment
Observations - use of senses to notice what is happening
Measurements - to associate numbers with a physical quantity
Flat - a container that holds and supports the growth of plants
Condition - how healthy a plant looks
Here are some definitions to help you in your Grade 3-5 Lesson 2 investigation.
Light - a form of energy that can be seen with the eye
Treatment - something given or added in an experiment
Doses - the amount of something given or added
Growth - an increase in the size of something
Height - how tall something is
Centimeters - a unit used to measure height
Predictions - a statement of what will happen in an experiment
Observations - use of senses to notice what is happening
Measurements - to associate numbers with a physical quantity
Flat - a container that holds and supports the growth of plants
Condition - how healthy a plant looks
Here are some definitions to help you in your Grade 3-5 Lesson 3 investigation.
Air - a mixture of gases that surround Earth
Treatment - something given or added in an experiment
Doses - the amount of something given or added
Growth - an increase in the size of something
Height - how tall something is
Centimeters - a unit used to measure height
Predictions - to state what will happen in an experiment
Observations - uses senses to notice what is happening
Measurements - to associate numbers with a physical quantity
Flat - a container that holds and supports the growth of plants
Condition - how healthy a plant looks
Here are some definitions to help you in your Grade 3-5 Lesson 4 investigation.
Water - a substance composed of hydrogen and oxygen that is a liquid at room temperature
Treatment - something given or added in an experiment
Doses - the amount of something given or added
Growth - an increase in the size of something
Height - how tall something is
Centimeters - a unit used to measure height
Predictions - to state what will happen in an experiment
Observations - uses senses to notice what is happening
Measurements - to associate numbers with a physical quantity
Flat - a container that holds and supports the growth of plants
Condition - how healthy a plant looks
Here are some definitions to help you in your Grade 3-5 Lesson 5 investigation.
Nutrients - chemical compounds that help maintain functions and good health
Treatment - something given or added in an experiment
Doses - the amount of something given or added
Growth - an increase in the size of something
Height - how tall something is
Centimeters - a unit used to measure height
Predictions - a statement of what will happen in an experiment
Observations - use of senses to notice what is happening
Measurements - to associate numbers with a physical quantity
Flat - a container that holds and supports the growth of plants
Condition - how healthy a plant looks
Extract - to remove or take out
Have you ever noticed that some plants grow and remain healthy while other plants wither and die? In this investigation, you’ll study what factors are needed to support healthy plant growth. You’ll also see how much of each factor results in the healthiest plants.
