ACS: Inquiry in Action - Liquids Have Properties (Lesson 2.1)
Students do simple tests to observe the properties of water, mineral oil, and corn syrup on the surface of a zip-closing plastic bag to investigate the question: Can liquids that look similar have different properties?
Objective
Students will be able to plan and carry out an investigation to discover and compare the properties of liquids. Students will develop an understanding that liquids, like solids, have their own characteristic properties.
Key Concepts
- Liquids have their own characteristic properties.
- Even if liquids look similar, they can have different properties.
- The properties of liquids can be discovered by doing tests on them.
- To compare the properties of liquids, the liquids need to be tested in the same way.
NGSS Alignment
- NGSS 2-PS1-1: Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
Summary
Students have looked at the properties of solids and in this lesson, will see that liquids also have properties.
- Students investigate three clear colorless liquids: water, mineral oil, and corn syrup.
- Students place drops of each liquid on the surface of a zip-closing plastic bag and see that the liquids look and act differently.
- Students tilt the bag and see that the liquids move down the plastic at different rates.
- Finally, students see a demonstration in which a drop of food coloring is placed in each liquid and students make observations about the different way the food coloring looks in each.
Evaluation
Download the Student Activity Sheet (PDF) and distribute one per student when specified in the activity. The activity sheet will serve as the Evaluate component of the 5-E lesson plan.
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Guided instructions, lesson plans, classroom activities, video demonstrations, and activity books.
Students plan and conduct an absorbency test on paper, plastic, aluminum foil, and felt to investigate the question: Which material absorbs water and why?
Students sort common objects according to characteristics such as shape, flexibility, and the material they are made from to investigate the question: Can you group objects based on their characteristics?
Students conduct a series of tests on different materials to learn about their properties to investigate the question: What are some of the characteristic properties of paper, plastic, and aluminum foil?
Students use what they’ve learned about the properties of paper, plastic, and aluminum foil to investigate the question: Which materials are best for making a boat that can hold the most pennies before sinking?
Students develop a test to compare the dissolving of an M&M and a Skittle in water to investigate the question: Do M&Ms and Skittles dissolve by the same amount?
Students place small common objects made from wax, wood, metal, and rubber in water to investigate the question: Do certain materials tend to float or sink in water?
Students warm butter until it melts and then cool it until it turns hard again as they investigate the question: How do substances change when they are warmed and cooled?
Students design and conduct an experiment to see if baking powder causes more bubbling in warm or cold water to investigate the question: Does baking powder produce more bubbles when it is heated or cooled?
After an introduction of Snap Cubes as models atoms and molecules, students use Snap Cubes to investigate the question: How can Snap Cubes be used to make models of different molecules?
Student groups use four or five Snap Cubes to make as many different objects as possible to investigate the question: How many different objects can be made by rearranging four cubes?
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Students do simple tests to observe the properties of water, mineral oil, and corn syrup on the surface of a zip-closing plastic bag to investigate the question: Can liquids that look similar have different properties?
Objective
Students will be able to plan and carry out an investigation to discover and compare the properties of liquids. Students will develop an understanding that liquids, like solids, have their own characteristic properties.
Key Concepts
- Liquids have their own characteristic properties.
- Even if liquids look similar, they can have different properties.
- The properties of liquids can be discovered by doing tests on them.
- To compare the properties of liquids, the liquids need to be tested in the same way.
NGSS Alignment
- NGSS 2-PS1-1: Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
Summary
Students have looked at the properties of solids and in this lesson, will see that liquids also have properties.
- Students investigate three clear colorless liquids: water, mineral oil, and corn syrup.
- Students place drops of each liquid on the surface of a zip-closing plastic bag and see that the liquids look and act differently.
- Students tilt the bag and see that the liquids move down the plastic at different rates.
- Finally, students see a demonstration in which a drop of food coloring is placed in each liquid and students make observations about the different way the food coloring looks in each.
Evaluation
Download the Student Activity Sheet (PDF) and distribute one per student when specified in the activity. The activity sheet will serve as the Evaluate component of the 5-E lesson plan.
Back to 2nd Grade lessons
Guided instructions, lesson plans, classroom activities, video demonstrations, and activity books.
Students plan and conduct an absorbency test on paper, plastic, aluminum foil, and felt to investigate the question: Which material absorbs water and why?
Students sort common objects according to characteristics such as shape, flexibility, and the material they are made from to investigate the question: Can you group objects based on their characteristics?
Students conduct a series of tests on different materials to learn about their properties to investigate the question: What are some of the characteristic properties of paper, plastic, and aluminum foil?
Students use what they’ve learned about the properties of paper, plastic, and aluminum foil to investigate the question: Which materials are best for making a boat that can hold the most pennies before sinking?
Students develop a test to compare the dissolving of an M&M and a Skittle in water to investigate the question: Do M&Ms and Skittles dissolve by the same amount?
Students place small common objects made from wax, wood, metal, and rubber in water to investigate the question: Do certain materials tend to float or sink in water?
Students warm butter until it melts and then cool it until it turns hard again as they investigate the question: How do substances change when they are warmed and cooled?
Students design and conduct an experiment to see if baking powder causes more bubbling in warm or cold water to investigate the question: Does baking powder produce more bubbles when it is heated or cooled?
After an introduction of Snap Cubes as models atoms and molecules, students use Snap Cubes to investigate the question: How can Snap Cubes be used to make models of different molecules?
Student groups use four or five Snap Cubes to make as many different objects as possible to investigate the question: How many different objects can be made by rearranging four cubes?
What are you looking for?
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Website URL
Type of Resource
PDF File
Video (Instructional)
