Sciences
**1. Which of the following life processes is primarily responsible for converting sunlight into
chemical energy that plants can use?**
A. Respiration
B. Digestion
C. Photosynthesis ✅✅
D. Transpiration
**2. A scientist observes that a plant leans toward a window. Which characteristic of living
things does this best demonstrate?**
A. Reproduction
B. Response to stimuli ✅✅
C. Cellular organization
D. Growth and development
**3. In a simple food chain, grass → rabbit → fox, what role does the rabbit play?**
A. Producer
B. Primary consumer ✅✅
C. Secondary consumer
D. Decomposer
**4. Which of these is an example of a physical change?**
A. Burning a piece of paper
,B. Rusting of an iron nail
C. Melting an ice cube ✅✅
D. Digesting food
**5. The three main states of matter are solid, liquid, and gas. What primarily changes when
matter transitions from one state to another?**
A. The chemical composition of the atoms
B. The speed and arrangement of the particles ✅✅
C. The total mass of the substance
D. The type of molecules present
**6. Which force is primarily responsible for pulling an object back to Earth when it is
dropped?**
A. Friction
B. Magnetism
C. Gravity ✅✅
D. Inertia
**7. What is the primary source of energy for Earth's climate system?**
A. Geothermal heat from Earth's core
B. The Moon's gravitational pull
C. The Sun ✅✅
D. Ocean currents
**8. Which planet is known for having a prominent ring system visible from Earth with a
telescope?**
A. Jupiter
, B. Saturn ✅✅
C. Mars
D. Venus
**9. A student sees the Moon appear to change shape over a month. These changes are
called:**
A. Rotations
B. Phases ✅✅
C. Eclipses
D. Revolutions
**10. Which layer of the Earth is composed of solid iron and nickel?**
A. Crust
B. Mantle
C. Outer Core
D. Inner Core ✅✅
**11. Weather events like rain and storms occur primarily in which layer of the atmosphere?**
A. Troposphere ✅✅
B. Stratosphere
C. Mesosphere
D. Thermosphere
**12. Which simple machine is a modified version of an inclined plane wrapped around a
cylinder?**
A. Lever