QUARTER 1
During assimilation, the nutrients pass through the walls of the small intestine and into the bloodstream. Which of the following organ systems work together with digestive system?
A. Circulatory System
B. Endocrine System
C. Muscular System
D. Skeletal System
A. Circulatory System
The idea that all matter is made up of tiny particles has evolved over many centuries. Who was the first to suggest that matter is made up of tiny, invisible particles called atoms?
A. Democritus
B. Ernest Rutherford
C. John Dalton
D. Neils Bohr
A. Democritus
Water is a vital resource that covers a large part of our planet. What proportion of the Earth's surface is covered by water?
A. 29%
B. 50%
C. 71%
D. 90%
C. 71%
Energy exists in many forms, but two common types are kinetic and potential energy. Which of the following best describes the two?
A. Kinetic energy is energy in motion while potential energy is energy at rest.
B. Kinetic energy is energy at rest while potential energy is energy in motion.
C. Potential energy and kinetic energy are both due to motion.
D. Potential energy and kinetic energy are both stored due to position.
A. Kinetic energy is energy in motion while potential energy is energy at rest.
Plant transport system is responsible for the uptake and transport of water and nutrients in plants. How do xylem and phloem work together in a plant’s transport system?
A. Xylem transport sugar and other organic compounds, while phloem transport water and minerals.
B. Xylem transport water and minerals, while phloem transport sugar and other organic compounds.
C. Both xylem and phloem transport water and minerals.
D. Both xylem and phloem transport sugar and other organic compounds.
B. Xylem transport water and minerals, while phloem transport sugar and other organic compounds.
J.J. Thomson used a cathode ray tube to learn more about atoms. What part of the atom did he discover with his experiment?
A. Electron
B. Neutron
C. Nucleus
D. Proton
A. Electron
The Earth’s outermost part, known as the crust, is composed of distinct layers that vary in composition and properties. What are the two main upper crustal layers of the solid Earth?
A. Continental Crust and Oceanic Crust
B. Crust and Lithosphere
C. Inner Core and Outer Core
D. Mantle and Core
A. Continental Crust and Oceanic Crust
Not every application of force results in work being done. Which of the following best describes work?
A. Work is done whenever energy is used.
B. Work is done only when an object is lifted.
C. Work is done if you get tired holding something.
D. Work is done when force causes objects to move.
D. Work is done when force causes objects to move.
The six-kingdom classification system is a way of categorizing all living organisms based on key characteristics. Which of the following is the advantage of using six-kingdom classification of organisms?
A. It simplifies the classification of organisms.
B. It is only useful for classifying plants and animals.
C. It is based on a single characteristic, such as cell wall composition.
D. It provides a framework for understanding the diversity of life on Earth.
D. It provides a framework for understanding the diversity of life on Earth.
Matter can be classified based on its composition. Some substances are pure, while others are mixtures of different components. Which of the following best defines a pure substance?
A. A mixture of two or more substances.
B. A substance that can be separated by physical means.
C. A substance with a fixed chemical composition throughout.
D. A substance that changes composition based on temperature.
C. A substance with a fixed chemical composition throughout.
Volcanoes differ in how often they erupt. How are volcanoes classified according to their activity?
A. All volcanoes erupt regularly.
B. They can be active, dormant, or extinct.
C. Volcanoes are classified by their size only.
D. Only underwater volcanoes can be active.
B. They can be active, dormant, or extinct.
Energy cannot be created or destroyed; it only changes from one form to another. What happens to an object’s energy when it falls due to gravity?
A. Energy disappears.
B. Potential energy stays the same.
C. Kinetic energy changes into potential energy.
D. Potential energy changes into kinetic energy.
D. Potential energy changes into kinetic energy.
Photosynthesis and cellular respiration are two fundamental biological processes that support life on Earth. Where do these processes occur?
A. Photosynthesis occurs in mitochondria, while cellular respiration occurs in chloroplast.
B. Photosynthesis occurs in chloroplasts, while cellular respiration occurs in mitochondria.
C. Both photosynthesis and cellular respiration occur in the cytoplasm.
D. Both photosynthesis and cellular respiration occur in the nucleus of the cell.
B. Photosynthesis occurs in chloroplasts, while cellular respiration occurs in mitochondria.
The periodic table organizes all known elements based on their properties. Who is known as the "father of the modern periodic table"?
A. Antoine Lavoisier
B. Dmitri Mendeleev
C. Henry Moseley
D. John Dalton
B. Dmitri Mendeleev
The shape of a volcano is influenced by the type of magma that erupts from it. How does the shape of a volcano’s cone relate to the composition of its magma?
A. Flat cones form from thick, sticky magma.
B. Steep cones form from fluid magma that spread easily.
C. All volcanoes have the same shape regardless of magma composition.
D. Shield volcanoes have broad, gentle slopes because their magma is low in silica and flows easily.
D. Shield volcanoes have broad, gentle slopes because their magma is low in silica and flows easily.
During P.E. class, students run around the oval track. Some students are jogging steadily, while others are sprinting on the curves. Which student is definitely accelerating?
A. A student standing still at the starting line.
B. A student walking slowly in a straight hallway.
C. A student jogging at a steady speed in a straight line.
D. A student sprinting around the curved part of the track at a steady speed.
D. A student sprinting around the curved part of the track at a steady speed.
When both parents carry one recessive allele for a trait, there is a chance their child may inherit that recessive allele. What is the probability that Anne will inherit a recessive allele from her parents who are both carriers of the allele (Tt)?
A. 25%
B. 50%
C. 75%
D. 100%
A. 25%
Aluminum has an atomic number of 13 and a mass number of 27. How many neutrons are in the neutral atom of aluminum?
A. 13
B. 14
C. 27
D. 40
B. 14
Typhoons can change their strength and movement depending on the land and water they pass over. How do bodies of water and landforms affect the strength and movement of typhoons?
A. Bodies of water and landforms do not affect typhoons.
B. Typhoons strengthen over land and weaken over oceans.
C. Typhoons weaken over warm ocean waters and strengthen over mountains.
D. Typhoons gain strength over warm bodies of water and weaken as they move over landforms like mountains.
D. Typhoons gain strength over warm bodies of water and weaken as they move over landforms like mountains.
A student draws a velocity-time graph of a moving car. The graph starts at zero, rises steadily, and then levels off into a flat line. What labels best describe each part of the graph?
A. Start – Constant speed; Middle – Acceleration; End – Stopped
B. Start – Acceleration; Middle – Stopped; End – Fast acceleration
C. Start – Constant velocity; Middle – Acceleration; End – Stopped
D. Start – Acceleration; Middle – Constant speed; End – Constant speed
D. Start – Acceleration; Middle – Constant speed; End – Constant speed