Review of Texas EC-6 Science Exam Preparation

Introduction

• Lecture focuses on preparation for the Texas EC-6 Science exam.
• Audience interaction is encouraged by mimicking a game show format.

Safe Laboratory Procedures

• Important for handling volatile and toxic compounds.
• Fume Hoods: Increase air flow, remove fumes, and protect lab occupants.
• Model safe habits in the lab.

Hypotheses, Scientific Theories, and Scientific Laws

• Hypothesis: Predicted outcome.
• Scientific Theory: Proposed explanation based on evidence.
• Scientific Law: Documented description of observations.

Formative vs. Summative Assessment

• Summative Assessments: Measure knowledge at the end of a unit or year.
• Formative Assessments: Measure knowledge regularly during learning.

Simple Machines

• Example given: Ramp (Inclined Plane).
• Increases distance of travel, decreases force needed.

Matter and Volume

• Solid gold melted to liquid gold:
  • Both have the same number of molecules.
  • Heat increases spaces between molecules; liquid has greater volume.

Life Science: Metamorphosis

• Butterfly: Undergoes complete metamorphosis (includes pupa stage).

Natural Selection

• Pressure Drives: Climate change, available resources, predator-prey relationships.
• Not a Driver: Equal populations of all organisms.

Rock Cycle

• Sedimentary Rocks: Formed when sediments are cemented together.

Phases of the Moon

• Full Moon: Full face illuminated by the Sun, visible from Earth.
• Occurs only when Earth is between Moon and Sun.

Conclusion

• Encouragement to take the full diagnostic test on 240tutoring.com.
• Closing remarks related to preparation success.