3/28/2024 0 Comments Atomic theory timeline![]() However, states (solid, liquid, gas, and plasma) and types (elements, compounds, and mixtures) will be discussed after The Atomic Theory Timeline.ĭiscuss the question, “Do you think that our understanding of the structure of the atom has changed over time?” Have students form opinions and share out. Explain any time in your life when someone has made an inference about you such as, “You must be smart because you wear glasses.” Have students volunteer to share out any time in their life when they have experienced people making inferences about them (students might site race, religion, income status, etc.)Īlso, discuss that everything around us is made of matter (atoms). They made their discoveries based on inferences.ĭiscuss inferences with students. Remind students that even though we are able to draw a model of an atom now, that in the past there was no technology for scientists to make these discoveries. Possibly have students come to the board to label an atom (nucleus, energy levels, electrons) or have students complete a table sort on atom structure to do a quick formative assessment to make sure that students are prepared to move forward with placing atom models on The Atomic Theory Timeline. It might also be necessary for some students to work with individual table sorts to place the atoms in order.īegin this lesson by reminding students about the atom and its structure. It might be necessary for some students to receive small group/1:1 instruction for memorization of scientists into their correct location on the timeline. Small craft pompoms (or dyed cotton balls) Prerequisites for the module include assessed ability to locate the location of aton structures (nucleus, energy levels, electrons) Key ideas include:Ī) our understanding of atoms has developed over time. This goal supports Virginia SOL PS.2 The student will investigate and understand that matter is composed of atoms. ![]() The students will place the historical contribution of each Atomic Theory scientist into an atomic theory timeline, place the correct model of the atom with each scientist, and list the characteristics of each model. The student will distinguish and describe similarities and differences of 2D atomic models from earliest model to the most modern model. This module focuses on how the model of the atom has changed over time using The Atomic Theory Timeline including the historical contributions of the scientists involved. As technology has evolved over time so has the understanding of the structure of the atom.
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