The Mid-Year Assessment Test for Science 7 will include the following terms and concepts: PART 1: Observations and inferences Life processes and characteristics of life Homeostasis Cells, cell organelles, differences between plant and animal cells Microscope: parts of the microscope and their function; wet mount; measuring with a microscope Scientific method, variables, control States of matter; physical and chemical changes; phase changes Electromagnetic spectrum, wavelengths, characteristics of waves, Light waves, reflection, refraction, diffraction; sound waves Heat energy, molecular motion Kinetic and potential energy; energy transfer; phase change Classification PART 2: Metric measurement, rounding to the nearest 10th Use of various instruments to calculate mass, volume, density Calculating volume of an irregular object Measuring with a microscope; parts of a microscope Graphing