Towards the end of the year I try to come up with more hands-on activities that review some of the concepts we studied earlier in the year. This is one of those labs and covers a variety of topics for a two day lab exercise.
Testing temperature changes in chemical reactions
Demonstrating cold and warm fronts (density of gas and liquids) with water tanks
I also added a few other additional topics /questions in the teacher notes page that includes various adaptations for the lab activities
Looking for more ideas? Check out my other resources!
Rice Krispy Bar Activity: Homogenous and Heterogenous Mixtures
Engineering Process Worksheet
FREE Introduction to Engineering: Artifical Limbs
Engineering a Boat that Floats Experiment
Engineering a Toothpick House Extended Edition