2022 Grade 8 Intermediate-Level Science Test Questions 31-45 Question Preview (ID: 59911)


Use Your Knowledge Of Science To Answer All Questions. Good Luck. TEACHERS: click here for quick copy question ID numbers.

An iron nail would feel the greatest attractive pull from this bar magnet at point


a) A
b) B
c) C
d) D

A group of students is designing an experiment to determine if the temperature of water affects how well laundry detergent cleans clothing. Which statement best describes a hypothesis for this experiment?
a) If more detergent is used, then the water will become colder.
b) If more detergent is used, then the clothes will be cleaner.
c) If the water is hotter, then the detergent will make the clothes cleaner.
d) If the water is hotter, then the detergent will shrink the clothes.

Which conclusion about heart rate can be supported by the data shown in the graph?


a) The before-exercise heart rate in trial 2 was 78 bpm.
b) The before-exercise heart rate increased 6 bpm after each trial.
c) The heart rate after exercise increased 10 bpm after each trial.
d) The heart rate went up 64 bpm after exercise in trial 3.

Which Earth layer contains convection currents that are believed to be responsible for the movement of Earth’s tectonic plates?


a) lithosphere
b) plastic mantle
c) stiffer mantle
d) outer core

As the depth below Earth’s surface increases, the average density of Earth’s interior


a) decreases, only
b) increases, only
c) increases and decreases
d) remains the same

The information in the table shows that the solubility of


a) nitrogen gas in water is greatest when the water temperature is 30°C
b) oxygen gas in water increases with increasing water temperature
c) a gas in water depends primarily on the volume of water
d) carbon dioxide gas in water decreases with increasing water temperature

What do the minerals hematite, limonite, and magnetite have in common?


a) brown streak
b) black streak
c) contain hydrogen
d) contain iron

Which observation of a plant on a windowsill supports the inference that plants need sunlight?
a) Flowers were produced
b) Larger leaves wilted
c) Stems grew toward the window
d) Roots were visible above the soil

Molecules are made up of
a) cells
b) mixtures
c) atoms
d) solids

At which location did the ball have the greatest potential energy?


a) A
b) B
c) C
d) D

A student sorts and categorizes a group of mineral samples based on their streak, hardness, and luster. Which scientific process is the student using?
a) classifying
b) sequencing
c) measuring
d) predicting

Which table correctly lists the placement of the elements C, Kr, and Cu?


a) A
b) B
c) C
d) D

Which element reacts in a manner most similar to oxygen?


a) sulfur
b) fluorine
c) phosphorus
d) neon

Compared to the particles in liquid water, the particles in solid ice move
a) faster and resist changes in position
b) faster and easily changes position
c) slower and resist changes in position
d) slower and easily changes position

Which statement might explain why the string of lightbulbs does not light when one of the lightbulbs is burned out?


a) Heat is reduced.
b) The circuit is interrupted
c) A voltmeter is missing.
d) Conduction is taking place.

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