physical and chemical properties and changes activity

PHYSICAL AND CHEMICAL PROPERTIES AND CHANGES ACTIVITY SERIES

Next, a systematic review of several excellent rhodamine-based derivatives for bioimaging, as well as for disease diagnosis and treatment, is presented. In this review, first, a brief history of the development of rhodamine fluorescent dyes, the transformation of rhodamine fluorescent dyes from bioimaging to disease therapy, and the concept of optics-based diagnosis and treatment integration and its significance to human development are presented.

However, reviews focusing on integrated design strategies for rhodamine dye-based diagnosis and treatment and their wide application in disease treatment are extremely rare. In addition to fluorescence bioimaging, the molecular design of rhodamine derivatives with disease therapeutic functions ( e.g., cancer and bacterial infection) has recently attracted increased research attention, which is significantly important for the construction of molecular libraries for diagnostic and therapeutic integration. Accordingly, they have emerged as a powerful tool for the visualization of living systems. The Physical and Chemical Changes Inquiry Lab is a hands-on activity that is differentiated for advanced, on-level, and modified middle school students.

Information and questions about photosynthesis and cellular respirationĪre included as examples of chemical changes on pages 316-318 of thisSince their inception, rhodamine dyes have been extensively applied in biotechnology as fluorescent markers or for the detection of biomolecules owing to their good optical physical properties. Students see that a new substance was created during the chemical reaction. Students conclude the investigation by comparing a precipitate to one of the reactants that formed it. 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. Then they control these reactions by adjusting the amount of reactants. Students continue to explore chemical change by using a thermometer to observe that temperature either increases or decreases during chemical reactions. 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 begin by observing that similar-looking powders can be differentiated by the way they react chemically with certain test liquids.

PHYSICAL AND CHEMICAL PROPERTIES AND CHANGES ACTIVITY SERIES

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. Click here to learn more about MEAs and how they can transform your classroom.Ĭhemical Change Investigations | Inquiry in Action: Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. In this activity, students will create a T Chart that illustrates examples of chemical and physical changes. Some physical changes are easier to reverse than others, such as dissolving salt in water. Also, in French fries, matter is not created but cooking oil is absorbed by the fries. A physical change occurs when a substance or substances combine, but the result does not change the original substances. For example, cooking a hamburger patty, the mass is not lost but sometimes the juices are separated from the meat. Students will also be exposed to how the Law of Conservation of Mass is used in our daily lives. They will also investigate how the hamburger patties are chemically changed due to a change in temperature. Some of the areas that students will examine is how the hamburger patties undergo a chemical change, but mass is not lost only changed into different substances. This MEA will ask students to investigate different types of hamburger patties and choose the one that is best for the restaurant.

Physical and chemical properties and changes activity