- What is the chemical formula for water?
Answer: H2O. - What is the unit of measurement for electric current?
Answer: Ampere (A). - What is the function of the nucleus in a cell?
Answer: DNA. - Name the process by which plants make their own food.
Answer: photosynthesis. - Which gas is released during photosynthesis?
Answer: Oxygen gas (O2) - What is the SI unit of force?
Answer: Newton (N). - What is the role of chlorophyll in plants?
Answer: absorbs light energy for photosynthesis - What is the largest organ in the human body?
Answer: the skin. - What is the process of conversion of solid directly into gas called?
Answer: sublimation. - Name the instrument used to measure blood pressure.
Answer: sphygmomanometer. - What is the formula to calculate speed?
Answer: speed = distance/time. - What is the main constituent of biogas?
Answer: methane (CH4). - What is the formula to calculate density?
Answer: Density = mass/volume. - What is the process of conversion of water vapor into water droplets called?
Answer: Condensation. - What is the pH scale used to measure?
Answer: To measure the acidity or alkalinity of a substance. - What is the process of separation of insoluble solid particles from a liquid called?
Answer: Filtration. - What is the formula to calculate work?
Answer: Work = force × distance. - What is the role of hemoglobin in our body? Answer: Hemoglobin is a protein in red blood cells that carries oxygen from the lungs to body tissues.
- What is the chemical name of baking soda?
Answer: Sodium bicarbonate (NaHCO3). - What is the function of the cerebellum in the brain?
Answer: Coordination and balance in the human body. - What is the unit of measurement for frequency?
Answer: Hertz (Hz). - What is the process of conversion of light energy into electrical energy called?
Answer: The photovoltaic effect. - What is the process of conversion of milk into curd called?
Answer: Fermentation. - What is the formula to calculate pressure?
Answer: Pressure = force/area. - What is the role of the ozone layer in the atmosphere?
Answer: Absorbs ultraviolet radiation of Sun
