B. Matter can be changed physically or chemically.
Clarification for grades K-5: The target understanding for students in the elementary grades should focus on Big Ideas A and B.
Clarification for Grades 6-8: The target understanding for students in the middle grades should begin to transition the focus to: C. When matter changes chemically, a rearrangement of bonds between the atoms occurs. This results in new substances with new properties.
Students will explore through fiction/nonfiction texts and hands-on activities that materials can be altered to change some of their properties. In an extension lesson, students can also explore how other forms of energy (besides electricity) can be used to cook food.
This lesson demonstrates how students can determine the cause and effect relationship in the digestion process. Students will be able to determine where chemical and physical changes occur in the digestion process and support their findings from an informational text. This lesson provides students with an opportunity to apply their knowledge of physical and chemical changes in matter to the process of digestion.
In this integrated ELA lesson, students will determine the cause and effect relationship for types of metals that experience rusting and tarnishing. The students can also compare and contrast the chemical changes of rusting and tarnishing, which will help them further understand how matter can change. This integrated lesson will help students apply comprehension skills to better understand informational text.
This lesson demonstrates how students can apply the process of comparing and contrasting to demonstrate the similarities and differences between physical and chemical changes in matter. The students will then compare and contrast these changes, assisting them in understanding the different ways matter changes.
This lesson demonstrates how students can apply the process of identifying main idea and supporting details to show the different ways burning can chemically change matter. The students can identify these changes and discuss the details that support these changes, which will help them further understand how burning matter is considered a chemical change.
Students are presented with an apple and are asked to draw it. In each subsequent class period they are asked to draw the same apple again. In this way, they watch and record the changes the apple goes through as it decays.
This activity will allow students to bury various pieces of trash in a plotted area of land outside. After approximately two to three months, the trash will be uncovered to allow the students to investigate what types of materials biodegrade in soil.
In this classroom lab setting, students will construct Decomposition Columns from two-liter plastic bottles. Students will gather organic material and observe activity in the column. Students will record observations and construction steps in their science notebook.
In this indoor lab activity students will be given a large variety of objects to sort into categories. After practice and discussion, they will then sort food items, first based on their five senses, then by studying their reactions when placed in red cabbage juice. Students document their predictions, observations, the results of their work and their conclusions.
In this series of 10 investigations, students gain experience with the evidence of chemical change - production of a gas, change in temperature, color change, and formation of a precipitate. Students begin by observing that similar-looking powders can be differentiated by the way they react chemically with certain test liquids. Students then use their chemical tests and observations to identify an unknown powder and, in a follow-up activity, to identify the active ingredients in baking powder. Students continue to explore chemical change by using a thermometer to observe that temperature either increases or decreases during chemical reactions. Then they control these reactions by adjusting the amount of reactants. In another set of activities, students use the color changes of red cabbage indicator to classify substances as acids or bases, neutralize solutions, and compare the relative acidity of two different solutions. Students conclude the investigation by comparing a precipitate to one of the reactants that formed it. Students see that a new substance was created during the chemical reaction. Information and questions about photosynthesis and cellular respiration
are included as examples of chemical changes on pages 316-318 of this
Type: Unit/Lesson Sequence
Vetted resources students can use to learn the concepts and skills in this benchmark.
Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.