Propiedades y Cambios Físicos y Químicos ELL Support for Spanish (Physical & Chemical Properties & Change) I speak fluent Spanish, so this was translated for real and NOT by Google translate. Available in English here

Spanish ELL Support for Density Practice Problems. I speak fluent Spanish, so this was translated for real, NOT using Google translate. 14 problemas de practica usando la formula para densidad para todos los variables. Disponible en ingles/Available in English

Here is a nice worksheet I made for my 9th grade Physical Science classes that reviews the group and period number trends of the periodic table. If you have taught your students OR need to teach them that the group # = the number of valence electrons in those elements’ atoms, and that the period # = the total number of energy levels of the atoms, then this is the worksheet for you! I have left a space for you to do an example with them before turning them loose on their own. Includes a key! See it on TpT

A nice worksheet for homework or simply class practice that covers classification of matter and conservation of mass. It includes matching as well as engaging classification questions that require higher order thinking skills. See it on TpT

Labs: Investigating Chemical Reaction Rates (includes 2 labs) See it on TpT This PDF contains 2 different approaches to a chemical reaction rates lab for 9th grade physical science. HS-PS1-5

Lab Activity: Ziplock Pressure Chamber & Pouring CO2 Gas to Extinguish Candle! See it on TpT This is a really fun lab activity I designed for my 9th grade physical science class, but it can be easily adapted for other grade levels. There is an open flame in the form of one or more candles depending on how you run the room. In the first activity, the students follow procedure and measure baking soda and vinegar, then strategically mix them in a baggie without allowing them to mix until all air is removed and the baggie is sealed. Sit back and watch their eyes when they allow them to mix and they learn what pressure is hands on! In the second activity, they practice measuring the same substances, but this time they create the CO2 gas in a beaker, then pour it down a paper trough to extinguish a candle! It’s a fun challenge, but they absolutely lose their minds when they succeed! The lab includes thought provoking questions about pressure and the density of CO2.

Invisi-Tables! Indirect Evidence Analog for Gold Foil Experiment (Nucleus) Fun! See it on TpT This is a really fun lab I made for my 9th grade Physical Science classes, but it can easily be adapted for pretty much any age level where the teacher wants to introduce indirect evidence. The students are tasked with using nothing but the rolls of a marble to discover what is hidden under the Invisi-Table. Where are the objects? How many are there? They actually sketch a picture of what is under it without having to look! It is a perfect low budget way of simulating Rutherford’s gold foil experiment, where here the marble represents the alpha particles that were shot at the gold atoms and the objects under the table represent an unknown structure like the nucleus was to Rutherford during his research. I’ve used it 3 years in a row with great success each time. It is very simple yet engaging and will keep the kids thinking. It is also re-usable every year. The tables themselves don’t take up much room. Includes comprehensive student lab handout and a brief section for the teacher on how to build Invisi-Tables, which includes pictures of all 6 of the ones I have used for 3 years in a row! Materials for each student/group: a standard glass marble, ruler, and lab notebooks or paper. Materials for making Invisi-Tables: Glue gun, approximately 12" x 24" thin boards, 4 rubber stoppers per table for the legs, and some small random objects to glue under the tables themselves. This is definitely worth doing. Please share you experiences with it in the reviews or comments. This file will likely be updated for free in the future. Any updates will be documented here. Thanks very much for your business.

This worksheet was designed to help my students get comfortable interpreting the numbers of valence electrons and energy levels for atoms using the group and period trends. It starts out with identifying numbers of energy levels and valence electrons, then requires students to rank elements using those numbers. Then it has students use the trends to identify both characteristics for the same elements. This is a quick activity to do together as a class or also works as a great homework assignment once the material is taught in class. See it on TpT

Chemical Bonds Lab: Growing Ionic Crystals! Solutions, Solubility, Saturation This is a lab designed for 7-9th grades where students pick either halite, epsomite, or alum to grow crystals with. The student handout is comprehensive and thorough. Every year I do this lab the kids have a blast. It is designed for the teacher to do the heating for super saturation. I personally use a large griddle of my own to heat several beakers at a time. I recently acquired access to several hot plates and ran this lab by allowing students to do their own heating. It works either way! See it on TpT

Periodic Table - Groups vs. Periods Practice / Review Sheet - Using the Trends HS-PS1-1 Here is an excellent resource I made for practicing or reviewing the group vs. period trends, including numbers of valence electrons and numbers of energy levels. It is a two page student handout (1 pg. front and back) and a complete teacher’s key. See it on TpT

This is hands down the ultimate worksheet for writing and naming ionic and covalent formulas. I get great results with it each year, and it is very versatile. This could be used as a class activity when teaching these skills, extra practice or homework, or even a quiz for advanced classes. See file preview for a sample with answers. 24 questions total that challenge students to classify the compound as ionic or covalent first, then they either write out the compound name or its chemical formula. HS-PS1-1 See it on TpT

Bohr Model Paper Lab - Draw or Cut & Paste Particles + Neutral Atom Info This can be modified to fit your students’ needs. It’s a paper lab on creating Bohr models that are full-page along with looking up information on neutral atoms of whatever elements you assign the students to complete. 3 energy levels included should accommodate atomic numbers 1-20. See it on TpT

Predicting Ionic Charge - Basic A Group Elements to Ions HS-PS1-1 Practice problems predicting basic ionic charges of groups 1A , 2A, 3A, 5A, 6A, and 7A elements. This sheet requires the students to reason how many electrons are gained or lost and what the charge and ionic symbols should be. See it on TpT

Writing Neutral Formulas for Binary Ionic Compounds - Practice Problems 2 examples and 10 practice problems! Directions include common charges for elements in groups 1-7 as well as an explanation that transition metals are named in compounds with their roman numeral being equal to their ionic charge. This is excellent practice to get this skill taught fast! See it on TpT

Classifying Chemical Reactions - Practice Problems Synthesis, Decomposition, Single-replacement, Double-Replacement, and Combustion reactions included. See it on TpT

Here are 24 practice questions that ask students to classify each one as a physical property, physical change, chemical property, or chemical change. Complete with answer key! Spanish Version Available Here See it on TpT

A station learning lab that incorporates the use of hands-on observation, YouTube video integration, and more about groups: Station 1: Alkali Metals – Chemical Reactivity Station 2: Alkaline Earth Metals – Atomic Radius Station 3: Transition Metals – Physical Properties Station 4: Carbon Family - Density Lab Station 5: Halogens – Melting Point Station 6: Noble Gases – Emission Spectra Minimal materials needed. See it on TpT