B. Objects and substances can be classified by their physical and chemical properties. Mass is the amount of matter (or "stuff") in an object. Weight, on the other hand, is the measure of force of attraction (gravitational force) between an object and Earth.
The concepts of mass and weight are complicated and potentially confusing to elementary students. Hence, the more familiar term of "weight" is recommended for use to stand for both mass and weight in grades K-5. By grades 6-8, students are expected to understand the distinction between mass and weight, and use them appropriately.
Clarification for grades K-2: The use of the more familiar term ‘weight’ instead of the term “mass” is recommended for grades K-2.
Clarification for grades 3-5: In grade 3, introduce the term mass as compared to the term weight. In grade 4, investigate the concept of weight versus mass of objects. In grade 5, discuss why mass (not weight) is used to compare properties of solids, liquids and gases.
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Independent
Supported
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Assessment
Image/Photographs
Lesson Plans
Model Eliciting Activity (MEA) STEM Lessons
Original Student Tutorials
Presentation/Slideshow
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Unit/Lesson Sequences
Virtual Manipulative
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Student Resources
Original Student Tutorials
Learn how to measure the mass of liquids (and some solids) using containers while Devin helps Chef Kyle in the bakery with this interactive tutorial.
Type: Original Student Tutorial
Learn to measure and compare the mass of solids as Devin helps Chef Kyle in the bakery with this interactive tutorial.
Type: Original Student Tutorial
In this SaM-1 video, students will learn how to measure the mass of solids and liquids using a balance. Students will learn that they need to subtract the mass of the container the solid or liquid is in to determine the mass of only the solid or liquid. Students will then make observations and sort items based on mass.
Type: Original Student Tutorial
This SaM-1 video provides the students with the optional "twist" for Lesson 17 and the Model Eliciting Activity (MEA) they have been working on in the Grade 3 Physical Science Unit: Water Beach Vacation.
To see all the lessons in the unit please visit https://www.cpalms.org/page818.aspx.
Type: Original Student Tutorial
In this video students learn that water can change its physical state through the addition or removal of heat. Students will learn the boiling and freezing points of water at standard pressure. They will also review how data can be used to create line graphs and these graphs can show patterns and changes to temperature over time.
This SaM-1 video is to be used with lesson 2 in the Grade 3 Physical Science Unit: Water Beach Vacation. To see all the lessons in the unit please visit https://www.cpalms.org/page818.aspx.
Type: Original Student Tutorial
Measure and compare temperatures of various things in this interactive tutorial. Then determine if temperature impacts the melting rate of ice cream.
Type: Original Student Tutorial
In this video Sam-1 introduces a Model Eliciting Activity (MEA) challenge. Students will take their prior experiences from the properties unit and apply their knowledge of investigating sea turtle nesting temperatures.
Students will develop a hypothesis, design an experiment, and support their reasoning to determine how to best study different methods for cooling sea turtle nesting areas.
Type: Original Student Tutorial
In this video, SaM-1 introduces a part 2 twist to the Model Eliciting Activity (MEA). In the optional twist, students will need to modify their original diet for a senior chimpanzee. The first video provided meal planning information to add to the knowledge students gained throughout the unit to start the challenge.
Type: Original Student Tutorial
In this video, SaM-1 introduces a Model Eliciting Activity (MEA) challenge for the students. This video provides meal planning information to add to the knowledge students gained throughout the unit. Students will be asked to develop a varied diet for a chimpanzee at the CPALMS Rehabilitation and Conservation Center based on the color, shape, texture, and hardness of the food.
In the optional twist, students will need to modify their original diet for a senior chimpanzee. The optional twist also has a SaM-1 video to introduce the twist challenge.
Type: Original Student Tutorial
In this video, SaM-1 introduces a part 2 twist to the Model Eliciting Activity (MEA) challenge. In the optional twist, students will need to design a prototype toy suitable for a Florida panther with an injured leg. This first video provides background information on why and how animals need to be entertained.
Type: Original Student Tutorial
In this video, SaM-1 introduces a Model Eliciting Activity (MEA) challenge for the students. This video provides background information on why and how animals need to be entertained. Students will have the opportunity to apply what they learned about physical properties and measuring linear lengths as they are asked to design a prototype toy for Florida panthers housed at the CPALMS Rehabilitation and Conservation Center.
In the optional twist, students will need to design a prototype toy suitable for a Florida panther with an injured leg. The optional twist also has a SaM-1 video to introduce the twist challenge.
Type: Original Student Tutorial
In this video, SaM-1 introduces a part 2 twist to the Model Eliciting Activity (MEA) challenge. In the first video, students were asked to design a habitat for an elephant or gorilla that will be housed at the CPALMS Rehabilitation and Conservation Center. In this twist, students will need to modify their design to accommodate a senior elephant or gorilla.
Type: Original Student Tutorial
In this video, SaM-1 introduces a Model Eliciting Activity (MEA) challenge for the students. This video provides habitat information to help the students use the knowledge they gained throughout the unit. Students are asked to design a habitat for an elephant or gorilla that will be housed at the CPALMS Rehabilitation and Conservation Center. Students will need to describe the physical properties (color, shape, texture, hardness) of the features they selected for the habitat while explaining the rationale behind their design choices.
In the optional twist, students will need to modify their design to accommodate a senior elephant or gorilla. The optional twist also has a SaM-1 video to introduce the twist challenge.
Type: Original Student Tutorial
In this SaM-1 video, students will learn how to make observations based on the property of temperature using thermometers, while representing the data in line graphs.
Type: Original Student Tutorial
In this SaM-1 video, students will use their listening and writing skills to learn about sea turtles, preparing them for subsequent lessons in the unit.
Type: Original Student Tutorial
In this SaM-1 Video, students will learn how to find the volume of irregular objects using a graduated cylinder and the displacement method.
Type: Original Student Tutorial
In this SaM-1 video, students will learn how to use a graduated cylinder to make observations based on the volume of liquids.
Type: Original Student Tutorial
Help SaM-1 make observations and sort items based on the mass of materials using a triple-beam balance and equal-arm balance. In this video, you will also become familiar with metric units for measuring mass: gram and kilogram.
Type: Original Student Tutorial
In this video, students will make observations based on the property of size, specifically length. Students will learn about the metric and customary measurement systems and use line plots to organize and sort data.
Type: Original Student Tutorial
This SaM-1 video begins the Grade 3 Animals: Rehabilitation and Conservation Center Unit on Physical Properties. Students learn that making observations is an important aspect of scientific study. Students will observe different properties and use these properties throughout the unit.
Type: Original Student Tutorial
Virtual Manipulative
This resource provides a fun and engaging way for you to learn about the world's smallest particle, the quark. A poem accompanies each page in the downloadable coloring book.
Type: Virtual Manipulative
Parent Resources
Virtual Manipulative
This resource provides a fun and engaging way for you to learn about the world's smallest particle, the quark. A poem accompanies each page in the downloadable coloring book.
Type: Virtual Manipulative