Biology
Which part of a plant is usually green and makes food for the plant?
the leaves
What is the force that pulls objects down to the ground?
What is the chemical symbol for gold?
Au
What is the largest planet in our solar system?
Jupiter
What is the largest landmass on Earth?
Asia
What is the smallest unit of life in all living organisms?
cells
Who discovered the law of gravity?
Isaac Newton
What is the name of the process by which water changes from a liquid to a gas?
Evaporation
What is the name of the layer of the Earth's atmosphere where weather occurs?
What is the largest terrestrial mammal on Earth?
African Elephant
Which organelle is responsible for breaking down waste materials and cellular debris in the cell?
lysosomes
What is the primary source of energy for the Earth's weather systems?
the Sun
What is the name of the compound formed when sodium reacts with chlorine?
Sodium Chloride (NaCl)
What is the process by which the Earth's continents have moved over time?
continental drift
What is the most abundant greenhouse gas in the atmosphere?
water vapor
What is the primary function of ribosomes in a cell?
protein synthesis
What is the name of the force that holds atoms together?
electromagnetic force
What is the name of the type of bond formed between two non-metal atoms?
covalent bond
What is the name of the geological time period when dinosaurs roamed the Earth?
Mesozoic Era
What is the process of converting organic matter into inorganic nutrients, which is essential for nutrient cycling in ecosystems?
decomposition
What is an example of passive transport?
diffusion
What is the heaviest element found in the human body?
Iodine
What is the concept of Avogadro's number used to measure?
The number of atoms or molecules in a mole of a substance
The Earth's magnetic field is generated by the movement of molten iron in which part of the Earth?
outer core
What is the primary component of acid rain?
sulfur dioxide