Students watch the teacher do a demonstration of density with diet and regular soda. Note: try this first, as different types of artificial sweetener have different densities. Students discuss density and volume. They discuss "Relational...

Students consider density and how it affects sinking and floating. Students make predictions, test liquids, and observe why some liquids sink and others float. They perform experiments to determine relational causality and how liquids...

Students explore air pressure. They observe what happens when you drink from a straw. Students experiment and create models to prove examine air pressure and vacuums. Sstudents contrast how linear and relational casusal models explain...