Biology
STAAR™ Achievement Series for Science © 2013 Region 4 Education Service Center
Notes
Read and select facilitation questions as appropriate to meet your students’ needs.
Phase Instructional Grouping Materials
Engage
Student pairs Engage: Anticipation Guide
Explore
Small groups
Safety goggles
Science notebook
Explore: Investigating Cell Transport
Station 1: Osmosis (hypotonic raisins)
100 mL beaker
Water
5 raisins
9 cm plastic Petri dish
Wax pencils to label beakers
Station 2: Diffusion
5 cotton balls
Anise oil
9 cm plastic Petri dish
Stopwatch
Balloons
Station 3: Diffusion
2 100 mL beakers
Food color
Hot plate
Warm water
Cold water
Stopwatch
Station 4: Osmosis (isotonic, hypertonic)
Elodea leaves (1 large bunch)
5 microscope slides
5 cover slips
4 microscopes
Saltwater solution
Pipette
Beaker
2 forceps
100 mL beaker
