Plants
What gas do plants take in during photosynthesis?
Carbon dioxide (CO₂)
What is the basic building block of all living things?
The cell
What is the main source of energy for Earth's climate system?
The Sun
What tool do scientists use to measure mass?
A scale
What gas makes up the largest percentage of Earth's atmosphere?
Nitrogen (about 78%)
Name the process by which plants make their own food using sunlight.
Photosynthesis
What do we call animals that eat both plants and other animals?
Omnivores
What force pulls objects toward the center of the Earth?
Gravity
What is the unit for measuring force in the metric system?
Newton (N)
What is formula of Carbon Dioxide?
CO2
Which type of reproduction involves only one parent and produces identical offspring?
Asexual reproduction
How many organs of nutrition do animals usually have?
5 (Mouth, esophagus, intestines, stomach, throat)
Which planet is known as the "Red Planet"?
Mars
What type of energy is stored in an object due to its position?
Potential energy
In a chemical equation, what do the numbers in front of formulas represent?
Coefficients (they show the number of molecules or moles)
Why are coral reefs called the "rainforests of the sea"?
They have extremely high biodiversity and support many species, like rainforests on land.
What is an adaptation that helps an organism survive in its environment?
Any inherited characteristic that increases survival/reproduction chances (e.g., camouflage, thick fur).
What causes tides on Earth?
The gravitational pull of the Moon
Which scientist is credited with developing the theory of natural selection and evolution?
Charles Darwin
What is formula of salt?
NaCl
What is the primary cause of the greenhouse effect?
Gases like carbon dioxide and methane trapping heat in Earth's atmosphere.
Name three animals that are in the Red Book of Kyrgyzstan
Argali, Snow Leopard, Tien-Shan Brown Bear, Falcon, Manul, Turkestan Lynx, Maral, Golden Eagle
What causes a shadow to be longest at sunrise and sunset?
The Sun is low on the horizon, so light rays hit objects at a low angle.
What law states that energy cannot be created or destroyed?
The Law of Conservation of Energy
What valence does Oxygen have?
II