Results of 21st International Elementz Fair

GROUP A

Group Awards School Names Project Titles Code A2 Merit Linking River Water Quality to Landuse A3 Silver St. Joseph's Institution Feasibility of an Oil-Waterfall Graphic Curtain A4 Silver Riverside Secondary School Investigating the effect of preservatives on food decay School of Science and Technology, A5 Merit Investigation of the humidity on the visibility of a light source A6 Gold Fuhua Secondary School Investigating which bubble tea brand has the lowest sugar level A7 Merit Jurong West Secondary School Robotic Laundry Machine ( from washing machine to drying poles )

A8 Merit Singapore Chinese Girls' School Microfuel cell

A9 Gold Sembawang Secondary School Effect of colour of light on growth of plants How supplementation of Lactobacillus casei to the diet can affect 훃-amyloid A11 Bronze Raffles Girls' School (Secondary) accumulation A12 Bronze Christ Church Secondary School Portable Uroflometry

GROUP B

Group Awards School Names Project Titles Code School of Science and B1 Merit Investigation of the factors on the range of a water rocket Technology, Singapore Pasir Ris crest Investigating the Possibility of Creating a Biodegradable plastic that can be used as fertiliser B2 Merit secondary school out of fruit and vegetable waste Jurong West B3 Merit Automatic Window Pane Cleaning Mechanism Secondary School Effects of different types of micro-plastics on morphology and swimming behaviour of B5 Silver St. Joseph's Institution Paramesium species Anderson Secondary B6 Bronze To investigate which household product will extend shelf-life of bananas School Vinschool Education B7 Silver C. militaris fungus Hybridization System Raffles Girls' School B8 Gold Effect of krill oil on accumulation of 훃-amyloid in Caenorhabditis elegans (Secondary) Chung Cheng High B9 Bronze Investigating the Legitimacy of the Five-seconds Rule School (Yishun) B10 Gold Nan Chiau High School Yeast Strains in Cotton-Derived Biofuel Singapore Chinese B11 Merit Bioplastic Girls’ School CHIJ St Nicholas Girls’ Comparing effectiveness of synthetic antibacterial Soaps in killing E. coli bacteria with plant- B12 Silver School based alternatives

GROUP C

Group Awards School Names Project Titles Code River Valley High C1 Gold Conversion of Rainwater to Electricity in Singapore’s High Rise Buildings School Edgefield Secondary C2 Bronze Study of the production of biogas from food waste School CHIJ St Nicholas C3 Merit Effects of Tea Tree Oil on Bacteria Growth Girls’ School School of Science and Investigation of the effect of height of a damper on the vibrational amplitude of a wooden C4 Merit Technology, cane Singapore Chung Cheng High C5 Silver Investigating Effects of Different Types of Milk on Cottage Cheese School (Yishun) Montfort Secondary How do different types of sand affect the height at which its collapses after being C6 Merit School stacked above each other?

Evaluating chitosan and alginate packaging as a potential way to replace plastic C7 Gold Catholic High School packaging

C8 Bronze St. Joseph’s Institution Investigating the effects of conservation of angular momentum on the flight of helicopter

Singapore Chinese C9 Bronze Investigative study of the flight of the shorea seed Girls’ School Kranji Secondary C10 Silver Optimising Diezoelectricity School Yio Chu Kang C11 Merit Powering Mass Rapid Transit (MRT) Trains using Wind Energy Secondary Springfield Secondary Solar disinfection of water (SODIS): An investigation on the amount of time required for C12 Silver School effective pathogen inactivation

GROUP D

Group Awards School Names Project Titles Code Yio Chu Kang Exploring the incorporation of Solar Cells and PDLC films on windows to reduce temperatures in D1 Silver Secondary classrooms Woodlands ring D2 Gold Building an Omnidirectional Four Wheels Robot with the Ability of Object Tracking and Following secondary school Compassvale D3 Gold Investigation on the efficacy of biosorbent in purifying water Secondary School Fuchun Secondary D4 Merit Optimal Wing Area for Unpowered Glider School CHIJ St Nicholas D5 Bronze Investigation of the parameters affecting the distance travelled and trajectory of a playing card Girls’ School Hwa Chong D6 Bronze Institution (Sec Rice Husk-derived Activated Carbon as an Eco-Friendly Adsorbent for Water Purification section)

Raffles Girls' School Comparative studies on the supplement of various fatty acids for ameliorating cognitive and motor D7 Silver (Secondary) dysfunction in Drosophila melanogaster model of Alzheimer’s disease

Singapore Chinese D9 Merit Investigative study of the helicopter Girls' School School of Science D10 Merit and Technology, Determination of Planck's constant using different LEDs Singapore St. Joseph's D12 Merit Investigating the characteristics of the conducting line Institution

GROUP E

Group Awards School Names Project Titles Code St. Joseph's E1 Silver Bimetallic ammeter: Novel method of Current Measurement Institution Maris Stella E2 Silver Ultrasonic Walking Stick For The Visually Impaired High School Holy Innocents' E6 Merit Bubble Tea Toppings? That’s sweet High School Singapore E7 Bronze Chinese Girls' Investigation on how the language used when thinking affects the decisions made by the person School Chung Cheng E8 Merit High School Investigating the Effects of Solutions on the Rate of Browning in Fruits (Yishun) CHIJ St E9 Merit Nicholas Girls' Investigation on Bacteria Growth in Straws made of different materials School Yio Chu Kang E10 Merit To investigate the amount of electricity produced by the photosynthesis of different water plants Secondary Catholic High E11 Bronze Effect of desalination brine on growth of Artemia salina School Hwa Chong Fabrication of Microbial Fuel Cells Powered by Organic Waste and Wastewater to Generate E12 Gold Institution (Sec Bioelectricity section)

GROUP F

Group Awards School Names Project Titles Code School of Science F1 Gold and Technology, Determination of the mass of Saturn Singapore Fuhua Secondary F2 Merit Investigating whether there is nutritional loss in cut fruits over time. School Hwa Chong F3 Gold Institution (Sec Hydrogen functionalization of graphene using RF plasma for photodetection section) Kranji Secondary F4 Silver Investigating the venturi effect School Singapore Chinese F5 Merit Investigating the ability of subliminal messages to influence thoughts and behaviours Girls' School Maris Stella High F6 Silver Acquiring Potable Water through Systematic Filtration School CHIJ St Nicholas F7 Bronze Comparing sugar levels in different types of tea beverages Girls' School Pasir Ris Crest F8 Merit Comparing the Impact of Acid Rain on Acid-Resistant Paint versus Normal Paint secondary school Yishun Secondary F10 Merit Investigation of generating electricity using biodegradable materials School Assumption English F11 Bronze The Cost Benefit Analysis of Renewable Energy Infrastructures for Public Housing School

GROUP G

Group Awards School Names Project Titles Code Raffles Girls' School Evaluating the Effect of Lactobacillus casei on Parkinsons’ Disease in Caenorhabditis G1 Gold (Secondary) elegans Singapore Chinese G3 Merit Comparing the properties of SAP Girls' School Yio Chu Kang G4 Merit Chemical fertilizers vs Natural fertilizers Secondary Bui Thi Xuan High Cytotoxic activity and phytochemical investigation of the ethyl acetate extract from G5 Bronze School, Ho Chi Minh Macrosolen bidoupensis Tagane & V.S. Dang City, Viet Nam Edgefield Secondary G6 Merit Study of superhydrophobic coatings on the anti-corrosion of guitar strings. School G7 Silver Catholic High School Investigating the factors affecting the power output of Microbial Fuel Cells Woodlands ring G8 Merit Using Sound Waves to Identify Fake Wine secondary school Holy Innocents' High G9 Silver Modelling Wi-Fi Propagation in a HDB Flat School Maris Stella High G10 Silver Natural Air Filter Using Sansevieria trifasciata School CHIJ St Nicholas G11 Bronze How organic materials that contain 5-HMF can remove stench of durian Girls' School Synthesis of Magnetic Carbonised Banana Peel as a Versatile and Reusable G12 Gold (Sec section) Adsorbent for Water Purification

GROUP H

Group Awards School Names Project Titles Code Singapore Chinese H1 Merit Comparing the effectiveness of substances on removing stains Girls' School Chung Cheng High H2 Merit Investigating the effects of different mixture of soil ingredients on the growth of plant School (Yishun) H3 Bronze Catholic High School Effect of prebiotics on recovery rate of gut bacteria Raffles Girls' School H4 Silver Assessing TCM effects on cell division using garlic roots (Secondary) Compassvale H6 Gold Investigating an alternative energy source from fruit peels Secondary School Yio Chu Kang H7 Gold Is Soapnut an effective organic washing agent? Secondary Riverside Secondary H9 Silver Investigating the strength of different starch based bioplastics School Montfort Secondary H10 Merit The effect of Wifi on the growth of plants. School Edgefield Secondary H11 Silver Study of superhydrophobic coatings for applications in anti-slip tiles. School Pasir Ris crest H12 Merit To investigate the effectiveness of removing fish blood secondary school

GROUP I

Group Awards School Names Project Titles Code Princess Chulabhorn The Study of the Concentration of Sodium Chloride Solutions and Duration on the Efficiency of I1 Bronze Science High School Chromosome Dye from Tachardia lacca , Vigna unguiculata subsp.sesquipedalis , Kaempferia Chiang Rai parviflora and Eleutherine palmifolia. Genome-Wide Study of Gene-Diet Interaction Effects on Leukocyte Telomere Length in the I2 Silver River Valley High school Singapore Chinese Population Mahidol Wittayanusorn I3 Bronze Development of molecular markers to identify Thai herbs at species level authentication School Nguyen Tat Thanh high Evaluation of Larvicidal Effect of the extract of Latana Camara against mosquito larvae I4 Merit school Anopheles dirus I5 Silver Millennia Institute Impact of seagrass habitat on bivalve population Nguyen Tat Thanh high Air quality measurement system and survey results on the concentration of CO gas and fine I6 Merit 2 school dust Pm2.5 in 3 areas Hwa Chong Institution I7 Gold Investigating different stress-relief methods using electroencephalogram (EEG) (College Section) Anderson Serangoon I8 Merit Testing the effects of the exposure to magnetic fields for zebrafish Junior College Princess Chulabhorn I9 Merit Science High School Electricity Monitoring system with IoT. Chiang Rai Mahidol Wittayanusorn I10 Silver Prediction of concentration using K-Nearest Neighbor process School Anderson Serangoon I11 Bronze Investigate the efficacy of natural disinfectants against common bacteria Junior College I12 Bronze River Valley High School Fake News Detection on Twitter: A Content Based Approach Anderson Serangoon I13 Merit Using Bacillus thuringiensis to control cockroach population in households Junior College Nguyen Tat Thanh high Study on creating synthetic materials Fe O / go orientations for applications in the renewable I14 Gold 3 4 school energy fields Anderson Serangoon I15 Merit Modelling of Lasers Junior College

GROUP J

Group Awards School Names Project Titles Code Princess Chulabhorn J1 Merit Science High School RGB Spectrophotometer Chiang Rai Anderson J2 Merit Serangoon Junior Building a Model to Provide Optimal Travel Routes for Commuters in Singapore College Mahidol Electronic structures and the nature of the bonding of Ni6-x Fex (x = 0 – 6) clusters using J4 Silver Wittayanusorn DFT calculation School River Valley High Design and Development of 3D-Printed Functionally Graded Structures for Broadband J5 Gold School Sound Absorption Mahidol J6 Silver Wittayanusorn Alcoholic fermentation enhancement using Flammulina velutipes stipe School Anderson J7 Bronze Serangoon Junior Compare Stock Investment Strategies Involving Financial Indicators College Nguyen Tat Thanh J8 Merit Developing birds deterrent devices in takeoff-landing area in Vietnamese airports high school Princess Chulabhorn The efficiency of inhibition the growth of weeds by allelopathy extract from Little ironweed in J9 Merit Science High School different solvents Chiang Rai Anderson J10 Merit Serangoon Junior Artistic Transformation of In2O3 Nanowires via Focused Laser Painting College Vinschool Education J11 Gold Solar panels System Dunman High J12 Bronze What motivates our judgment of Eloquence? Application of Face Recognition Techniques School Anderson J13 Silver Serangoon Junior Investigating the growth of Clitoria ternatea in cell suspension culture College River Valley High Impacts of Growing Media on Productivity and Nutritional Quality of Raphanus sativa J14 Bronze School Microgreens and Baby Greens