Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. The chewing of food in the mouth is an example of which digestive process?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. Which substance is secreted by the stomach to help digest proteins?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. Which body system works closely with the digestive system to remove waste products from the body?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. Which structure in plants transports water and minerals from the roots to the leaves?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. The leaves of plants are mainly responsible for which function?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. Which diagram is MOST useful in showing how different body systems interact?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. In a simple dominant–recessive trait, which allele is expressed in the phenotype?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. What is the genotype of an organism that is heterozygous for a dominant trait?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. In a cross between two heterozygous parents (Aa × Aa), what is the expected phenotypic ratio?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. Which system of classification divides organisms into Archaea, Bacteria, and Eukarya?

Direction: Read and analyze each item carefully. Answer the given items by providing the necessary information asked for. Why is the six kingdom system important?

Humans are classified as mammals because they:

Humans belong to the Order Primates because they have:

Which cycle shows the movement of water through evaporation, condensation, and precipitation?

Plants play an important role in the carbon cycle by:

Which raw materials are needed for photosynthesis?

What are the main products of photosynthesis?

In which part of the cell does photosynthesis occur?

Which investigation would BEST verify that light is needed for photosynthesis?

Which digestive process involves enzymes breaking down food into simpler substances?

Where does most water absorption occur in the digestive system?

Which pair of plant organs works together to transport food made during photosynthesis?

Which tool is MOST appropriate for showing the step-by-step movement of materials between body systems?

If a recessive trait is expressed in an offspring, what can be inferred about its genotype?

In a Punnett square, what does each box represent?

Which kingdom includes multicellular organisms that perform photosynthesis?

Animals help maintain the oxygen cycle by:

Cellular respiration occurs mainly in the:

Which step is MOST important when planning a scientific investigation on photosynthesis?

Who first proposed that matter is made up of tiny, indivisible particles called atoms?

Which atomic model introduced the idea of electrons embedded in a positively charged sphere?

Which scientist’s experiment led to the discovery of the nucleus?

The Bohr model of the atom is best described as having:

Which part of the atom contains protons and neutrons?

Which electron configuration correctly follows the Aufbau Principle?

Hund’s Rule explains why electrons in the same sublevel:

Which rule explains the order $$1s \rightarrow 2s \rightarrow 2p \rightarrow 3s$$ in electron filling?

Which pair of electrons violates the Pauli Exclusion Principle?

Where are electrons located in an atom?

A pure substance is best described as one that:

Which of the following is an example of an element?

Which statement is true about the atoms of an element?

The atomic number of an element is determined by the number of:

What is the correct electron configuration for neon (atomic number 10)?

Who developed the first periodic table based on increasing atomic mass?

What was significant about Mendeleev’s periodic table?

Who improved the periodic table by arranging elements according to atomic number?

How many periods are there in the modern periodic table?

How many groups are found in the periodic table?

Elements in the same group generally have the same:

Which element is among the first 20 elements of the periodic table?

Why is the electron configuration $$2s^2\ 1s^2\ 2p^6$$ incorrect?

Which element has the symbol Mg?

What determines the position of an element in the periodic table?

The valence electrons of an atom are found in the:

An aluminum atom has an atomic number of 13. How many protons does it have?

A neutral aluminum atom has how many electrons?

If aluminum has a mass number of 27, how many neutrons does it have?

Why do elements in the same group show similar chemical properties?

Approximately what percentage of the Earth's surface is covered by water?

Which statement correctly compares water and land coverage on Earth?

Which layer is considered the uppermost solid layer of the Earth?

The continental crust is generally:

Which type of volcano is currently erupting or shows signs of eruption?

Which volcano type is characterized by gentle slopes and fluid lava flows?

Explosive volcanic eruptions are commonly associated with which magma type?

Which volcano is commonly found along convergent plate boundaries?

The steep shape of a composite volcano is mainly due to its:

Which feature best shows the relationship between volcanoes and plate boundaries?

Most active volcanoes and earthquake epicenters are found:

Oceanic crust is mainly associated with which type of lithospheric plate?

Which statement correctly describes lithospheric plates?

The Philippines is located in a region characterized by:

A typhoon develops when warm ocean water provides:

Why is the Philippines prone to typhoons?

Which agency in the Philippines monitors and tracks typhoons?

The Philippine Area of Responsibility (PAR) is important because it:

What tool is MOST useful in tracing the path of a typhoon?

How do large bodies of water affect typhoons?

Mountain ranges can affect typhoons by:

Which government action helps communities affected by typhoons?

Information from DOST and other agencies helps communities by:

Tides are mainly caused by the gravitational pull of the:

High tides occur when the Earth, Moon, and Sun are:

Which type of tide has the greatest difference between high and low tide?

Neap tides occur when the Sun and Moon are:

Tidal energy can be generated by using:

Which location is MOST suitable for tidal energy generation?

Tidal energy is considered renewable because it:

What causes an object to accelerate?

Acceleration is best described as the:

Which of the following is an example of acceleration?

Which situation shows uniform circular motion?

Which quantity changes when an object moves in a circular path at constant speed?

In a distance–time graph, a straight line with constant slope represents:

A curved line on a distance–time graph indicates:

In a velocity–time graph, the slope of the graph represents:

A horizontal line in a velocity–time graph shows that the object is:

Which graph best represents an object that is speeding up?

Kinetic energy is the energy of:

Potential energy is best described as energy:

Which situation shows kinetic energy being converted to potential energy?

Which example shows potential energy changing into kinetic energy?

Which object has the greatest kinetic energy?

Work is done when a force:

Two people lift the same box to the same height. One lifts it faster. Who does more power?

Which mirror is commonly used as a security mirror in stores?

Refraction of light happens when light:

In hydroelectric power plants, water stored in dams has:

Which everyday object demonstrates refraction of light?

Hydroelectric energy is considered renewable because it:

Which object has the greatest kinetic energy?

Work is done when a force:

As water flows down from a dam, its energy changes into:

Reflection of light occurs when light: