INTERNATIONAL PLANT GROWTH EXPERIMENT
l be ableto creatively apply their abilities in math, geometry, and art.Two growth chamber designs are included here as examples: Option A, the Rocket Design, is morecomplex and Option B, the Rectangular Box, is very simple. Previous teams have had success withboth designs. Each team should choose Option A or Option B according to the goals of the educatorand student team, and the time available to build a growth chamber before the planting date. OptionA presents students with a variety of engineering and math challenges beyond Option B. Bothdesigns are functional as plant growth chambers. Both chambers were built at the least possiblecost.6
GROWTH CHAMBER OPTION A. ROCKET DESIGNMaterials Needed:Gather the following materials before beginning:1. Enough cardboard for the selected design2. Aluminum foil3. Six 0.5 l (16 oz) plastic soda or water bottles (or similar, for planters)4. Glue5. Duct tape6. Cutting knife7. Ruler with centimeter (cm) measurement8. Paint and brushes for decoration (optional)NOSE CONE (A)Building the Rocket Chamber1. Using the instructions provided, measure and draw the pattern on cardboard.2. Cut the pattern out of the cardboard. This includes all of the pieces for the base, fuel tank, and nosecone.3. Line the inside of the cardboard with foil (shiny side out) using glue or tape to hold it into place.4. Fold the cardboard into shape, tape and/or hot glue the pieces together as required for each of thefollowing parts.A - Nose coneB - BaseC - Fuel Tank5. Cut two 1.5 cm x 5 cm (1 in x 2 in) holes on the sides of the base and on the top of the nose cone forventilation.BASE (B)Obtaining a Watering PanPurchase or find a 23 x 23 cm (9 x 9 in) foil pan or similar to use as the watering pan.FUEL TANK (C)Building the PlantersTo build the planters:1. Cut six small 0.5 l (16 oz) soda or water bottles in half, approximately 20 cm (4 in) from the bottom. Thebottom half will be used as our plant containers.2. Drill four small holes, 0.32 cm (0.125 in) diameter each, in the bottom of each container.Inside the rocket growth chamber looking at the fuel tank. For our tests, we used 2 soda bottle containers for theplants with a tin tray for watering.7
OPTION A - ROCKET DESIGNCut ListBASE (B)NOSE CONE (A)Nose Cone - Light Baffle (A)Qty - 1Base - Top Ring (B3)Qty - 1B313.3 cm(5.25 in)27.9 cm(11 in)11.4 cm(4.5 in)A38.1 cm(15 in)Ventilation holeson top of rocketand bottom sides11.4 cm(4.5 in)Nose Cone - Sides (A2)Qty - 811.43 cm(4.5 in)y33 cm (13 in)15.8 cm(6.25 in)25.4 cm(10 in)Base - Sides (B2)Qty - 8A230.4 cm(12 in)15.2 cm(6 in)15.8 cm(6.25 in)xB2A2A2A2AA2A2A2Base (B)Qty - 1A2A2B38.1 cm(15 in)B215.8 cm(6.25 in)B2B2BB2B2B2B28B2x
OPTION A - ROCKET DESIGN (continued)Cut ListFUEL TANK (C)Fuel tank - Top (C)Qty - 1CFuel tank - Side (C2)The plants rest on top of this.Qty - 127.9 cm (11 in)Cutting out the cardboard.25.4 cm(10 in)TOPC2All the parts - Ready to assemble.TOP87.6 cm(34.5 in)Gluing and painting9
GROWTH CHAMBER OPTION B. RECTANGULAR BOX DESIGNThis chamber design uses a cardboard box and aluminum foil. Cover the inside of the box withfoil using glue or tape. Luminosity, the amount of light that is reflected off the foil, is particularlyimportant to ensure that the plants are healthy enough to produce radishes.Materials Needed:Gather the following materials before beginning:1. Enough cardboard for the selected design2. Aluminum foil3. Six 0.5 l (16 oz) plastic soda or water bottles (or similar, for planters)4. Glue5. Duct tape6. Cutting knife7. Ruler with centimeter (cm) measurement8. Paint and brushes for decoration (optional)9. A container to use as a watering pan that will hold water and six ½ liter soda bottlesBuilding the Rectangle Box Chamber1. Using the designs provided, measure and draw the pattern on the cardboard.2. Cut the pattern out of the cardboard.3. Line the inside of the cardboard with foil (shiny side out) using glue or tape to hold it into place.4. Fold the cardboard into shape and glue and/or tape the pieces together as required.5. Attach the door using duct tape as a hinge.6. Cut two 1.5 cm x 5 cm (1 in x 2 in) holes on the sides of the base for ventilation.Obtaining a Watering PanPurchase or find a 23 x 23 cm (9 x 6.25 in) foil pan or similar to use as the watering pan.Building the PlantersTo build the planters:1. Cut 6 small 0.25 l (16 oz) soda or water bottles in half: approximately 20 cm (4 in) from the bottom.The bottom portion will be used as our, “planters.”2. Drill four small holes, 0.32 cm (0.125 in) diameter each, in the bottom of each container.10
OPTION B. RECTANGULAR BOX DESIGN (continued)Top - Light Baffle & VentilationQty - 124.1 cm(9.5 in)11.3 cm(4.5 in)BaseQty - 124.1 cm(9.5 in)24.1 cm(9.5 in)Sides (Includes Door)Qty - 424.1 cm(9.5 in.)38.1 cm(15 in.)Cut two 1.5 cm x 5 cm (1 in x 2 in) ventilation holesabove the height of the watering tray11
RADISH HARVEST PROTOCOLLand Based (LB)Be sure to always have land and space specimens separated. Followeach step for both land- and space-based planters.Space Based (SB)1. Height of Tallest PlantA1. Measure the height of the tallest plants (space-based and land-B5. Number of SpecimenAbased) and note the heights on your data log and diagram.PHYSICAL REMOVAL2. Gently remove plants from medium, keeping track of which plantsBCABCCABC6. Size - Leaf to Tap rootare SB-A, SB-B, or SB-C, or LB-A, LB-B, or LB-C. Your data log anddiagram will show where each plant was in its planter.3. Gently rinse excess soil from bulb and roots, avoiding damage to theroots.DOCUMENTATION4. Keeping space-based and land-based samples separate, take 3A1B1C1A1B1C12222223333334444447A. Weight (Unmodified)B1C1A1photos, labeling each group as follows:A) Group of space-based radishes (SB)B) Group of land-based radishes (LB)C) Space- and land-based radishes together (SB and LB)A1B1C12222223333334444447B. Total Weight (Unmodified)BA5. Record the number of radishes in each group.6. Measure sample lengths from tallest leaf to the tip of the tap roots.7. Weigh unmodified samples.A) Weigh each individual radishB) Weigh and record total for group8. Cut the tops (greenery) from the bottoms (radish).A) Weigh and record the total greeneryB) Weigh and record individual radishesC) The total weight of all radishes in each of the three groups (SBC8A. Weight (Greenery/Leaves)BAC8B. Weight (Cut Radishes)B1C1A1only; LB only; both SB and LB)9. Enter additional notes about the radishes in terms of hardness, color,shape, etc.(Bonus!)10. Set an oven to 60º C (140º F); dehydrate greenery groups and radishbodies for a minimum of 24 hours. Be careful not to burn them.A) Weigh the three groups (SB only; LB only; both SB and LB) tocompare with each other and with the weights of the fresh(non-dried) radishes and greensABCABCA1B1C12222223333334444448C. Total Weight (Cut Radishes)ABCACB9. NotesAlong with data logs, please share pictures of plants and diagramswith SDL to provide a complete story of the experience and to helpensure similar terms across sites.Thank you for all your work with this project! We hoped you enjoyedthe experience and learned a lot. Please remember to share yourfindings so we can continue working together and learning from eachother.http://www.sdl.usu.edu/bion/(BONUS) 10A. Dried WeightA12CBD
13WaterAmount (ml)Timeof Day123Space Based (SB-A)A - Height1234Space Based (SB-B)B - Height123Hours OnTotal Duation/daySpace Based (SB-C)C - Height123Land Based (LB-A)A - Height123Land Based (LB-B)B - Height123Sharing Data - Thank you for all your work with this project! We hoped you enjoyed the experience and learned a lot. Please remember to share your findings so wecan continue working together and learning from each other. Website: http://www.sdl.usu.edu/bion/DateLight TypeWattageLand Based (LB-C)C - OTESNOTESNOTESNOTESNOTESName of recorder
Cosmonaut Maxim Suraev showing his affection for the Mizua and Wheat cropgrown on International Space Station in the fall of 2009. This photo was takenin December 2009 just prior to the final harvest.Image courtesy of NASA - image # iss022e01582314
Obtaining a Watering Pan Purchase or nd a 23 X 23 cm (9 x 9 in) foil pan or similar to use as the watering pan. Building the Planters To build the planters: 1. Cut 6 small 0.5 l (16 oz) soda or water bottles in half, approximatel
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