Written Response Prep – Version
2 Practice Test with Tables,
Diagrams & Case Vignettes for
Science/Math
Question 1
A fifth-grade teacher is conducting an experiment where students place ice cubes in
separate cups and observe them melting at different rates. One student places a
metal spoon in the cup and notices the ice melts faster. Which of the following best
explains why the ice melts faster with the metal spoon?
A) The metal spoon adds heat energy to the ice
B) The metal spoon conducts heat from the surrounding air into the ice
C) The metal spoon reflects sunlight onto the ice
D) The metal spoon creates friction that melts the ice
[CORRECT] B
Rationale: Metals are good conductors of heat. The metal spoon conducts thermal
energy from the warmer surrounding air into the ice, accelerating the melting process.
The spoon does not add heat energy itself (A)—it transfers existing heat from the
environment. The spoon does not reflect sunlight (C) in a typical classroom setting, and
friction (D) would require movement, which is not part of this demonstration.
Question 2
A fourth-grade teacher asks students to predict which of the following materials
would be best for insulating a cup of hot chocolate to keep it warm. Which material
would be the best insulator?
,A) Aluminum foil
B) Cotton fabric
C) Copper wire
D) Glass
[CORRECT] B
Rationale: Cotton fabric is a poor conductor of heat, making it a good insulator. It traps
air pockets that slow heat transfer. Aluminum foil (A) is a metal and conducts heat,
though it can reflect radiant heat. Copper wire (C) is an excellent conductor and would
transfer heat away quickly. Glass (D) is a moderate conductor and a poor insulator
compared to cotton.
Question 3
A sixth-grade teacher is teaching about the three states of matter. She shows
students a beaker of water at room temperature. She then places the beaker in a
freezer. After several hours, the water becomes solid. Which of the following best
describes what happened to the water molecules?
A) The molecules lost energy and moved closer together in a fixed pattern
B) The molecules gained energy and moved farther apart
C) The molecules stopped moving completely
D) The molecules changed into different atoms
[CORRECT] A
Rationale: When water freezes, the molecules lose thermal energy, slow down, and
arrange themselves in a fixed crystalline structure (ice). Molecules never stop moving
completely (C)—they still vibrate in place. Molecules do not gain energy (B) when
freezing; they lose energy. The atoms in water molecules (H and O) do not change into
different atoms (D)—freezing is a physical change.
, Question 4
A third-grade teacher is demonstrating the concept of buoyancy. She places a ball of
clay in water and it sinks. She then shapes the same clay into a boat shape and it
floats. Which of the following best explains why the clay boat floats?
A) The clay boat has less mass than the clay ball
B) The clay boat displaces more water, increasing the buoyant force
C) The clay boat has become a different material
D) The clay boat is lighter because it has air pockets
[CORRECT] B
Rationale: The boat shape displaces more water than the ball shape, increasing the
buoyant force. According to Archimedes' principle, the buoyant force equals the weight
of the displaced water. When the boat displaces enough water to equal its weight, it
floats. The mass of the clay remains the same (A)—it's the same amount of clay. The
material hasn't changed (C). While the boat shape may trap air, the primary reason is
increased water displacement (D is partially true but B is the fundamental principle).
Figure 1: Simple Circuit with Switch
text
┌─────────────────────────┐
│ │
│ ┌─────[BULB]─────┐ │
│ │ │ │
│ │ ┌──[SWITCH]──┤ │
│ │ │ │ │
│ │ │ │ │
│ └────┘ │ │
│ │ │ │
│ [BATTERY] │ │
│ │ │ │