PS.2.1.2
Analyze and interpret data to compare the amount (volume and weight) of water in a container before and after freezing.
Embedded Files
District Recommended Resources for 2nd Grade Science
Changes
How Much Can it Hold?
Solids and Liquids
Changes of Water
Activity Packs are available for purchase. Full Kit rental options are also available. See your administrator.
Science Phenomena Resources
Next Generation Science Standards YouTube Channel
Step 1: Lesson Standards & Learning Goals
Dimension 1:
SEP: Analyze and Interpret Data:
Students will use their observations to explain how the weight of water (before and after it is frozen) in a container stays the same and how the volume of water (before and after) in a container increases when frozen.
Dimension 2:
CCC: Patterns, Cause and Effect
Dimension 3:
Disciplinary Core Ideas:
Different kinds of matter exist (e.g. wood, metal, water), and many of them can be either solid or liquid, depending on temperature. Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible (e.g., melting and freezing), and sometimes they are not (e.g., baking a cake, burning fuel).
Sample Essential Questions
Sample Essential Questions
How does the weight and volume of water change when frozen?
What differences do you notice between the water before and after freezing?
Vocabulary
Vocabulary
freezing
mass
matter
weight
volume
Students will be able to...
Students will be able to...
Conduct investigations to compare the weight and volume of water in a container before and after freezing.
Measure the weight of the water to find out if it remains the same.
Observe and compare the volume of water in a container before and after freezing.
Asking Questions & Defining Problems - Students ask questions based on observations in order to find more information about how the weight and volume of the water in the container are affected once it is frozen.
Planning and Carrying Out Investigations - With teacher guidance, students plan and conduct investigations to observe and compare the weight and volume of liquid (matter) before and after freezing.
Students will know...
Students will know...
Taking away heat (or cooling) a liquid can cause it to freeze and change into a solid.
The weight of the water before freezing and after freezing is the same. Weight is often used to describe the heaviness of an object. Actually, it is a measure of force rather than mass. It is the effect of gravity on an object.
The volume of the water will change because it will expand after freezing. Volume is the amount of space taken up by an object.
Matter is anything that has weight and takes up space.
Mass is the amount of matter that makes up an object.
Volume is the amount of space taken up by an object.
Step 2: Assessment
Formative Assessments
Formative Assessments
Writing Prompts
Journal Prompt: Describe what happens to a container of water when it is placed in the freezer. Does anything change? How does it look different?
Journal Prompt: Explain the difference between heating and cooling. How does heating and cooling affect water?
Mini Projects and Investigations
Matter Learning Stations - See What's the Matter in Mr. Whisker's Room Activities
Culminating Activity: Pothole Patrol
Using the document, print out images for students to put together a jigsaw to figure out the process of how a pothole occurs due to weathering. Have students make connections to each process. Once in order, have them write about it on the document.
Step 3: Lesson Instructions
Possible Activating Strategies
Possible Activating Strategies
Role-Playing:
Assign roles such as "water molecules" and demonstrate how they behave differently when they freeze compared to when they are liquid. This can help students visualize the concept in a playful manner.
Bumper Cars
Read the passage Water Takes Three Forms and formulate 3 questions from the passage.
Follow directions for Eduprotocol Bumper Cars
Image
Show students the image of the cracks in the sidewalk.
What do you notice?
What do you wonder?
Revisit after experimenting with freezing water.
Additional Literacy Connections
epic!
Sid the Science Kid: Why Did my Ice Pop Melt?
Waiting for Ice (fiction)
Read Alouds
Hanson, A. (2011). Melting matter.
Nelson, R. (2003) Freezing and Melting (Frist Step Nonfiction - Water).
Greathouse, L. (2010) Melting and Freezing (Science Readers: A Closer Look).
Teacher Resources
Teacher Resources
Science A to Z (paid subscription)
YouTube
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