EASY
Which tool is used to measure the volume of a liquid?
A. Scale
B. Thermometer
C. Graduated cylinder
D. Ruler
C. Graduated cylinder
What is the smallest unit of matter?
A. Atom
B. Molecule
C. Cell
D. Proton
A. Atom
What is the process by which plants convert light energy into chemical energy?
A. Photosynthesis
B. Respiration
C. Digestion
D. Transpiration
A. Photosynthesis
Which of the following techniques separates dissolved solids from liquids by heating?
A. Decantation
B. Filtering
C. Evaporation
D. Magnetism
C. Evaporation
Which technique would you use to separate a mixture of sand and iron filings?
A. Evaporation
B. Sieving
C. Magnet
D. Filtering
C. Magnet
What is the process called when plants release water vapor into the atmosphere?
A. Transpiration
B. Respiration
C. Photosynthesis
D. Evaporation
A. Transpiration
What is the process when a gas changes into a liquid?
A. Evaporation
B. Condensation
C. Melting
D. Freezing
B. Condensation
Which of the following is NOT a phase of matter?
A. Solid
B. Liquid
C. Gas
D. Smoke
D. Smoke
Which of these is an interaction for survival in tropical ecosystems?
A. Overhunting only
B. Living and non-living things interactions
C. Only predator–prey relationships
D. Water cycle exclusively
B. Living and non-living things interactions
When gravity and friction both act on a moving car, what is the overall effect?
A. The car speeds up indefinitely
B. The car stops moving immediately
C. The car slows down gradually
D. The car moves upward
C. The car slows down gradually
Which of the following is NOT a type of electromagnetic radiation?
A. X-rays
B. Gamma rays
C. Ultraviolet rays
D. Sound waves
D. Sound waves
Which of the following is NOT a type of rock?
A. Igneous
B. Sedimentary
C. Metamorphic
D. Transparent
D. Transparent
What branch of science studies the fossils of ancient life?
A. Paleontology
B. Geology
C. Archaeology
D. Anthropology
A. Paleontology
Which two forces affect the movement of objects?
A. Gravity and buoyancy
B. Gravity and friction
C. Friction and magnetism
D. Inertia and velocity
B. Gravity and friction
Why is it important to conserve mangrove swamps?
A. They serve as tourist spots only
B. They act as nurseries and protect coastlines
C. They only provide wood
D. They are unimportant ecosystems
B. They act as nurseries and protect coastlines
What is the largest organ in the human body?
A. Heart
B. Skin
C. Brain
D. Liver
B. Skin
Which of the following is a type of simple machine?
A. Screw
B. Gear
C. Lever
D. Battery
C. Lever
Which organ system is responsible for transporting oxygen and nutrients?
A. Nervous system
B. Circulatory system
C. Digestive system
D. Integumentary system
B. Circulatory system
What is a characteristic of vertebrates, unlike invertebrates?
A. No backbone
B. Cold-blooded only
C. Have a backbone
D. Can fly only
C. Have a backbone
How do organ systems like respiratory and circulatory systems work together when you exercise?
A. They shut down
B. They both supply oxygen to muscles and remove carbon dioxide
C. Only one system works at a time
D. They compete for oxygen
B. They both supply oxygen to muscles and remove carbon dioxide
Which of these is a renewable energy source?
A. Coal
B. Solar power
C. Natural gas
D. Oil
B. Solar power
What is the name of the force that pulls objects toward each other?
A. Gravity
B. Friction
C. Inertia
D. Velocity
A. Gravity
Which ecosystem among the following needs protection due to its role as a breeding ground?
A. Desert
B. Coral reefs
C. Alpine mountains
D. Grasslands
B. Coral reefs
What happens in the body when organ systems work together?
A. The body becomes confused
B. They function independently
C. They maintain homeostasis and health
D. They compete with each other
C. They maintain homeostasis and health
Which combination of separation techniques would best separate a mixture of sugar, sand, water, and iron filings?
A. Filtration → Evaporation → Magnet
B. Magnet → Decantation → Filtration
C. Sieving → Magnet → Decantation
D. Magnet → Filtration → Evaporation
D. Magnet → Filtration → Evaporation