# SC.5.P.8.2

Investigate and identify materials that will dissolve in water and those that will not and identify the conditions that will speed up or slow down the dissolving process.
General Information
Subject Area: Science
Body of Knowledge: Physical Science
Idea: Level 3: Strategic Thinking & Complex Reasoning
Big Idea: Properties of Matter - A. All objects and substances in the world are made of matter. Matter has two fundamental properties: matter takes up space and matter has mass.

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.

Date of Last Rating: 05/08
Status: State Board Approved
Assessed: Yes

## Related Courses

This benchmark is part of these courses.
5020060: Science - Grade Five (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7720060: Access Science Grade 5 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2023, 2023 and beyond (current))
5020120: STEM Lab Grade 5 (Specifically in versions: 2016 - 2022, 2022 and beyond (current))

## Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
SC.5.P.8.In.2: Identify examples of materials that will dissolve in water and those that will not.
SC.5.P.8.Su.2: Recognize examples of materials that will dissolve in water.
SC.5.P.8.Pa.2: Recognize a common substance that dissolves in water.

## Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

## Lesson Plans

Transfer The Heat:

This lesson introduces how heat transfers to different substances using an electrical device. The electrical device used create thermal energy changes a substance’s state of matter. This lesson contains a lab experiment that tests the timing at which butter changes to its melting point while using a lamp. This lab questions whether using a different electric device will conclude the same results.

This is lesson 3 in the Detecting Electrical and Thermal Energy Unit.

Type: Lesson Plan

Icky, Icky, No More Slicky:

In this lesson, 5th grade students will build an engineering device to separate oil from water in a simulated oil spill. Students will have an opportunity to learn about the impact that humans can have on the environment, both positively and negatively.

This is an Engineering Design Challenge that is best used after a unit or lesson that is aligned to science standards on solving problems or materials which dissolve in water. This challenge provides students a means to use their knowledge of the way materials will or will not dissolve in water to create and design an oil spill removal tool while learning the Engineering Design Process and being exposed to the field of engineering. This lesson is not intended as an initial introduction to the standard and would be best utilized as a culmination lesson.

Type: Lesson Plan

From Trash to Treasure - An Engineering Design Challenge:

This lesson gives students hands-on experience with sorting mixtures based on their properties. The students will relate these science standards to a real-world problem of eliminating trash in land fills. They will have to purchase the tools they use to create their assembly line to sort the garbage within the budget provided.

Type: Lesson Plan

Kelly's Cafe - Mixing It Up!:

In this 5th grade MEA, students will work in groups to develop a procedure to rank which self-made, children's drink would be best to add to a current coffee shop menu. Students will consider factors such as flavor appeal, temperature of drink , costs, time required to mix drink, special equipment needed and nutritional value. Students will apply knowledge of how temperature and stirring can affect dissolving time.

Type: Lesson Plan

To Dissolve or Not To Dissolve, Part 1:

This lesson uses the 5E model as students explore how various substances will dissolve. This is the first in a two part lesson. In the second lesson, students will compare how a substance will dissolve in varying temperatures. Students will learn about dissolving, mixtures, solutions and solubility.

Type: Lesson Plan

Solve the Dissolving Problem:

In this lesson, students will be experimenting what independent variable will affect dissolving rates; students will compare results of peers to also determine materials that dissolve and do not dissolve from 5 given materials; and, students will identify and learn what controls in an experiment are and their importance. This is a multi-part lesson that can be broken down by day or presented in one block. Complete all Part As in each phase (Teaching/I Do/Know, Guided/We Do/Understand, Independent/You Do/Do) before Part Bs. This lesson does not address the reference/research component of SC.5.N.1.1.

Type: Lesson Plan

To Dissolve or Not To Dissolve, Part 2:

This is part 2 of a lesson addressing solubility. Part 1 addresses how varying substances will dissolve in water. Part 2 addresses how temperature will effect solubility. The 5E lesson plan model will include a lab and is aligned with Florida ELA standards.

Type: Lesson Plan

## Text Resource

A Matter of Mixing:

This informational text resource is intended to support reading in the content area. This article describes properties of items as hyrdophobic or hyrdophilic and how they work.

Type: Text Resource

## Unit/Lesson Sequences

Dissolving Solids, Liquids, and Gases | Inquiry in Action:

In this series of six investigations, students will participate in activities that help them better understand the different factors that affect the solubility of solids, liquids, and gases. First, students will add sugar and food coloring to different liquids to discover that substances don't necessarily dissolve in all liquids. Students will then add cocoa mix to hot and cold water, and see that this solute dissolves better in hot water. However, the following teacher demonstration shows that increasing the temperature of water has very little effect on the solubility of salt. Students also experiment with the effect of temperature on carbon dioxide gas dissolved in water. Students should conclude that temperature affects the solubility of substances in different ways. As a culminating challenge, students use their knowledge of dissolving solids, liquids, and gases in water to create a fizzy lemon soda.

Type: Unit/Lesson Sequence

Mysterious M&Ms | Molecules in Motion | Inquiry in Action:

In this unit, students will investigate M&Ms in water by posing questions, designing and conducting experiments to answer these questions, and developing explanations based on their observations. Students will investigate the effects of variables, such as temperature, on the rate at which the colored coating of M&Ms dissolves.

Type: Unit/Lesson Sequence

## STEM Lessons - Model Eliciting Activity

Kelly's Cafe - Mixing It Up!:

In this 5th grade MEA, students will work in groups to develop a procedure to rank which self-made, children's drink would be best to add to a current coffee shop menu. Students will consider factors such as flavor appeal, temperature of drink , costs, time required to mix drink, special equipment needed and nutritional value. Students will apply knowledge of how temperature and stirring can affect dissolving time.