This is a density laboratory with 3 differentiated levels. Students use mini marshmallows in three different temperatures and investigate how to find density and how density changes at different temperatures. Density is introduced in the Ohio State Science Standards in 6th grade, but are fully addressed in the physical science curriculum.
pre-assessment for determining differentiated groups
3 levels of experimentation
3 answer keys for leveled analysis questions
7 printable student pages!
No freezer? No microwave? No problem! Put the marshmallows in a baggies and cover with a baggie of ice! Or Sit on a baggie of marshmallows to heat them up!
The mastery group lesson has materials lists as well as variable, but asks students to develop the other parts of the experiment. Students in this group also have more difficult and through provoking questions to answer.
The learning group is tasked with coming up with a material list, safety directions and purpose statement, but is given the procedure to follow. These students are given less extension questions and more analysis questions.
The beginning group is given most sections of the experiment to follow and easier directed analysis questions to answer.
6th Grade Science Standards in Ohio: Matter has properties of mass and volume. Mass measures the amount of matter in an object (e.g., a wood block) or substance (e.g., water), and volume measures the three-dimensional space that matter occupies. Equal volumes of different substances usually have different masses. Some materials, like lead or gold, have a lot of mass in a relatively small space. Other materials, like Styrofoam® and air, have a small mass in a relatively large amount of space. This concept of comparing substances by the amount of mass the substance has in a given volume is known as density. BACK TO INDEX BACK TO K-8 INDEX OHIO’S NEW LEARNING STANDARDS I Science 188 While the mass and volume of a material can change depending upon how much of the material there is, the density generally remains constant, no matter how much of the material is present. Therefore, density can be used to identify a material. The density of any object (e.g., a wood block) or substance (e.g., water) can be calculated from measurements by dividing the mass by the volume. Mass vs. volume graphs can be constructed and interpreted (e.g., to determine which material has the greater density.)