Objective: Children will investigate characteristics of liquids and solids, and experiment with changing states—turning a liquid into a solid.
Liquids and solids are two forms of matter. Matter can also be a gas. Everything on Earth is a form of matter. Liquids do not hold their shape and can be poured. Solids hold their shape and cannot be poured. Some solids can be melted to become a liquid. For example, ice is a solid but becomes a liquid once melted. Some liquids can be changed into a solid. For instance, when cream is churned, it becomes a solid—butter.
Butter is usually made by a process called churning. The cream from milk is placed in a cylindrical shaped container and vigorously beaten until it thickens into butter. Any liquid remaining in the cylinder is poured off. The butter is mixed and blended, and sometimes salt is added. Next, it is cut, wrapped, and chilled. Butter is refrigerated to maintain freshness.
These lessons are aligned with the Common Core State Standards ("CCSS"). The CCSS provide a consistent, clear understanding of the concepts and skills children are expected to learn and guide teachers to provide their students with opportunities to gain these important skills and foundational knowledge.
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There are currently no Common Core Standards for pre-k, but these lessons are aligned as closely as possible to capture the requirements and meet the goals of Common Core Standards. However, these lessons were neither reviewed or approved by the National Governors Association Center for Best Practices or the Council of Chief State School Officers, which together are the owners and developers of the Common Core State Standards.