what do plants need to create a stem?

Summary

In an introductory give-and-take, students identify the concrete needs of animals and then speculate on the needs of plants. With instructor guidance, students and so blueprint an experiment that can take identify in the classroom to test whether or not plants need lite and water in social club to abound. This prepares them to conduct the associated activity in which sunflower seeds are planted in plastic cups, and in one case germinated, are exposed to different conditions. In a classroom setting information technology is easy to test for the effects of light versus darkness, and watered versus non-watered conditions. During exposure of the plants to these different conditions, students measure growth of the seedlings every few days using not-standard measurement. Afterwards a few weeks, they compare the growth of plants exposed to the different conditions, and make pictorial bar graphs that demonstrate these comparisons.

This engineering curriculum aligns to Next Generation Scientific discipline Standards (NGSS).

Engineering Connection

Determining the optimal environments for growing crops and other plants used to produce products is agricultural technology.

Learning Objectives

After this lesson, students should be able to:

• Discuss what plants and animals need to survive.
• Describe how a simple experiment can be conducted in lodge to determine whether or non plants need light and/or water in order to grow.

Educational Standards

Each TeachEngineering lesson or action is correlated to 1 or more than K-12 scientific discipline, engineering science, applied science or math (Stem) educational standards.

All 100,000+ Chiliad-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), a project of D2L (www.achievementstandards.org).

In the ASN, standards are hierarchically structured: get-go past source; e.g., past state; inside source by blazon; e.k., science or mathematics; within type by subtype, then by grade, etc.

NGSS: Next Generation Science Standards - Science

NGSS Performance Expectation
2-LS2-1. Plan and conduct an investigation to decide if plants need sunlight and water to abound. (Course 2) Practise you concur with this alignment? Thanks for your feedback!
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This lesson focuses on the following Three Dimensional Learning aspects of NGSS:
Science & Engineering Practices	Disciplinary Core Ideas	Crosscutting Concepts
Plan and bear an investigation collaboratively to produce information to serve as the basis for evidence to reply a question. Alignment agreement: Thanks for your feedback!	Plants depend on water and light to grow. Alignment agreement: Thanks for your feedback!	Events have causes that generate observable patterns. Alignment agreement: Cheers for your feedback!

NGSS Operation Expectation
G-LS1-1. Use observations to describe patterns of what plants and animals (including humans) need to survive. (Class 1000) Do y'all concur with this alignment? Thanks for your feedback!
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This lesson focuses on the post-obit Three Dimensional Learning aspects of NGSS:
Science & Applied science Practices	Disciplinary Core Ideas	Crosscutting Concepts
Use observations (immediate or from media) to describe patterns in the natural earth in order to respond scientific questions. Alignment agreement: Thank you for your feedback! Scientists look for patterns and gild when making observations about the world. Alignment agreement: Thank you for your feedback!	All animals need food in social club to live and grow. They obtain their food from plants or from other animals. Plants need water and light to live and grow. Alignment agreement: Thanks for your feedback!	Patterns in the natural and human designed globe can exist observed and used every bit prove. Alignment agreement: Thanks for your feedback!

International Technology and Engineering science Educators Clan - Technology

• Analyze how things work. (Grades Pre-Grand - 2) More Details

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• Asking questions and making observations helps a person to figure out how things work. (Grades Thou - 2) More Details

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• Collect information most everyday products and systems past asking questions. (Grades 1000 - ii) More Details

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State Standards

North Carolina - Science

• Summarize the basic needs of a variety of unlike plants (including air, water, nutrients, and light) for energy and growth. (Grade 1) More Details

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  Do you agree with this alignment? Thanks for your feedback!

• Recognize that plants and animals need air, h2o, low-cal (plants only), space, food and shelter and that these may be found in their environs. (Form one) More than Details

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Introduction/Motivation

Begin with a brief give-and-take about the needs of animals, using the familiar examples of humans, dogs and cats. Expect students to exist able to recognize that these animals all need food to eat, h2o to drink and air to breathe. They might as well suggest that animals need clothing and shelter in order to keep warm and dry.

So ask students what they call back plants need in order to alive and abound. It is helpful to have a few house plants in the classroom to refer to. Perhaps students accept seen y'all water them, or if houseplants are not available, perhaps they have seen lawns and gardens being watered. If students practice not propose low-cal every bit a need of plants, merely inquire them if they call up plants need lite. You could help them reason out the reply by asking if gardens and farms are planted in forests or in open areas. Await them to make the connection that gardens would not get every bit much light if they were planted in the shade of a forest, merely instead, in an open expanse with lots more than sunshine.

Ask students if they would like to plant some seeds and so run across if their plants grow better in light or in the dark (Refer to the associated activity Light Plants and Dark Plants, Wet Plants and Dry out Ones for more than information). Point out that they can likewise detect out if their plants need water or not. Since young children mostly bask growing plants from seeds, and will monitor their progress with enthusiasm, at this point expect them to be well motivated to go on investigating the needs of plants.

Lesson Background and Concepts for Teachers

Body of Lesson:

Announce that y'all have materials then that each student can abound some plants from seeds. Then point out that this provides as opportunity to do an experiment to determine if plants really practise need h2o or calorie-free. Inquire for ideas equally to how this could be done. Exist sure to listen to all ideas, and without directly stating that an thought or some aspect of it won't piece of work; instead, ask leading questions to get the student to realize that a better fashion might be.

Point out that if the course wants to see if h2o is necessary, it is important that the not-watered plants be otherwise treated simply the aforementioned as the watered ones, that is, placed in the calorie-free alongside the watered plants. Otherwise the class will not be able to tell if it was the lack of water that was responsible for whatsoever differences that occurred, or if information technology was some other difference in the plants' locations that was responsible. (Students may not sympathize this idea, but it is worth mentioning with the hope that it comes to memory when students are asked to carry other experiments in the time to come.) Likewise, if the class wants to find out if plants will grow in darkness, explain that they, too, must otherwise be treated the same as the plants grown in the lite, that is, they should be watered just like those grown in the light.

Effort to let students come up with a way to go on some of the plants in the dark by request for suggestions. The more than input they have into the design of the experiment, the better. A dark closet or cabinet is ideal, or a space can be created from a large cardboard box draped in black felt.

Associated Activities

• Light Plants and Dark Plants, Wet Plants and Dry out Ones - Students plant sunflower seeds in plastic cups, and once germinated, expose them to unlike weather of light levels and/or soil moisture.

Lesson Closure

Once the basic questions of what the experiment (or experiments) will be about, and how the room tin can exist used to conduct the experiment(due south), accept students prepare to comport the associated action.

Assessment

Patterns: Have students employ their observations to describe patterns of what plants need to survive.

Perform educatee cess afterward completion of the associated activity.

Copyright

© 2013 by Regents of the Academy of Colorado; original © 2004 Duke University

Contributors

Mary R. Hebrank, project and lesson/activity consultant

Supporting Program

Engineering science K-PhD Plan, Pratt School of Engineering, Duke University

Acknowledgements

This content was adult by the MUSIC (Math Agreement through Science Integrated with Curriculum) Program in the Pratt School of Engineering at Duke Academy under National Science Foundation GK-12 grant no. DGE 0338262. However, these contents practice non necessarily represent the policies of the NSF, and you lot should non presume endorsement past the federal regime.

Terminal modified: April 7, 2022

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Source: https://www.teachengineering.org/lessons/view/duk_sunflower_mary_less