How Can We Change Solids and Liquids?
How Can We Change Solids and Liquids? is part of Smithsonian Science for the Classroom, a new curriculum series by the Smithsonian Science Education Center. It is aligned to a group of grade 2 standards. It has a focus on physical science with a secondary focus on engineering. In this module, students:
- Organize solids by color, shape, and hardness
- Obtain information from a text about how hard and soft materials are used to make different types of sculpture
- Carry out investigations to see whether a sculpture made from pieces can be taken apart and made into a different sculpture
- Argue from evidence for whether sand is a solid or a liquid
- Analyze data from tests to find the best material to use in a cold pack
- Construct an explanation for how a silver necklace can be made starting from wax wrapped in clay
- Plan and carry out investigations to find the best material for a replica gemstone
Below are digital resources that support teaching of this module.
Ada Asks Introduction
This video shows examples of solids and liquids changing. It requires audio.
This file shows an image of a dog eating crumbs off the floor.
Hard and Soft Sculptures
This file shows an image of a sculpture made from granite and an image of a sculpture made from paper mâché.
Carving Wood (0:23)
This video shows a Burmese man using a chisel to carve wood.
Paper Mache (0:19)
This video shows schoolchildren in Thailand covering a balloon with strips of wet paper.
This file shows an image of a sculpture and an image of objects that could have been used to make the sculpture.
In this game, students have to build a tower to help Tami, the golden tamarin, reach the fruit. Tami’s Tower is available online and as a mobile app. It is also available in Spanish.
Egg Timer (0:20)
This video shows sand falling through an egg timer.
Solids and Liquids
This file contains instructions for comparing the properties of solids and liquids.
Ada Asks Boo-Boo Pack
This video introduces the problem of injuries needing to be kept cold.
Baked Crayons (0:51)
This video shows a piece of crayon wrapped in clay being heated in the oven.
This audio file is a traditional Tuareg music track featuring a tende drum, clapping, and vocals.
Ada Asks Science Challenge
This video introduces the challenge to find the best material for a replica gemstone.
The file contains instructions for preparing a presentation to the museum director.
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