ALEX Classroom Resource

  

Density and Buoyancy: Mixing Hot and Cold Water

  Classroom Resource Information  

Title:

Density and Buoyancy: Mixing Hot and Cold Water

URL:

https://aptv.pbslearningmedia.org/resource/phy03.sci.phys.descwrld.zhot/density-and-buoyancy-mixing-hot-and-cold-water/

Content Source:

PBS
Type: Audio/Video

Overview:

We've all seen substances change as a result of changes in temperature. Water heated on the stove eventually changes from a liquid to a gas and seemingly disappears as it disperses into the air. But even at lesser extremes, temperature affects the density of water. In this video segment adapted from ZOOM, a cast member demonstrates how temperature affects the way water molecules react with one another.

Content Standard(s):
Science
SC2015 (2015)
Grade: 5
3 ) Examine matter through observations and measurements to identify materials (e.g., powders, metals, minerals, liquids) based on their properties (e.g., color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, solubility, density).


NAEP Framework
NAEP Statement::
P4.1: Objects and substances have properties. Weight (mass) and volume are properties that can be measured using appropriate tools.*

NAEP Statement::
P4.3: Matter exists in several different states; the most common states are solid, liquid, and gas. Each state of matter has unique properties. For instance, gases are easily compressed while solids and liquids are not. The shape of a solid is independent of its container; liquids and gases take the shape of their containers.


Unpacked Content
Scientific And Engineering Practices:
Planning and Carrying out Investigations
Crosscutting Concepts: Scale, Proportion, and Quantity
Disciplinary Core Idea: Matter and Its Interactions
Evidence Of Student Attainment:
Students:
  • Make observations and measurements to identify materials based on their properties.
Teacher Vocabulary:
  • color
  • hardness
  • reflectivity
  • electrical conductivity
  • thermal conductivity
  • response to magnetic forces
  • solubility
  • density
  • measurement (quantitative and qualitative)
  • data
  • observable properties
  • standard units
  • conductors
  • nonconductors
  • magnetic
  • nonmagnetic
Knowledge:
Students know:
  • Materials have different properties-color, hardness, reflectivity, electrical conductivity thermal conductivity, solubility, and density.
  • Measurements of a variety of properties can be used to identify materials.
  • Measurements should be made in standard units (e.g., grams & liters).
Skills:
Students are able to:
  • Identify the phenomenon through observations about materials, including color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, and solubility.
  • Identify the evidence and collect data about the observed objects in standard units (e.g., grams, liters).
  • Collaboratively plan the investigation.
  • Identify materials based on their properties.
Understanding:
Students understand that:
  • Standard units are used to measure and describe physical quantities of materials such as weight, time, temperature, and volume. These measurements will assist in the identification of the materials ( e.g. powders, metals, minerals, and liquids).
AMSTI Resources:
AMSTI Module:
Matter and Interactions

Alabama Alternate Achievement Standards
AAS Standard:
SCI.AAS.5.3- Classify materials (e.g., powders, metals, minerals, liquids) based on their properties (e.g., color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, solubility, density).


Tags: density, liquid, molecules, temperature, water
License Type: Custom Permission Type
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  This resource provided by:  
Author: Stephanie Carver