Science Key Terms

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Questions and Answers

When conducting an experiment on states of matter, a student is testing the effects of temperature changes on water vapor (gas). The student notices that liquid water molecules begin to form on the side of her beaker as the temperature drops below 100 degrees celsius. What process is the student observing in this experiment as the water vapor (gas) changes to a liquid?

melting
freezing
condensation (correct)
evaporation

Read the definition and choose the matching vocabulary word. Anything that has mass and takes up space

standard units
volume
measurement
weight
matter (correct)
observe
temperature
properties

Read the definition and choose the matching vocabulary word. How hot or cold something is

standard units
observe
measurement
weight
temperature (correct)
matter
volume
properties

Read the definition and choose the matching vocabulary word. Units with agreed-upon values that are used by different individuals to measure the same thing

standard units (F) Signup and view all the answers

Read the definition and choose the matching vocabulary word. The heaviness of an object; force of gravity on mass = weight

weight (H) Signup and view all the answers

Read the definition and choose the matching vocabulary word. To use the senses to examine or inspect

observe (A) Signup and view all the answers

Read the definition and choose the matching vocabulary word. The size, length, or amount of something, as established by measuring

measurement (B) Signup and view all the answers

Read the definition and choose the matching vocabulary word. Physical or chemical characteristics of matter used to describe or identify a substance

properties (D) Signup and view all the answers

Read the definition and choose the matching vocabulary word. The amount of space matter takes up; measured in liters (L), cubic centimeters (cm3), or milliliters (mL).

volume (A) Signup and view all the answers

Read the definition and choose the matching vocabulary word. A process in which substances combine to make one or more new substance(s).

Chemical reaction (C) Signup and view all the answers

Read the definition and choose the matching vocabulary word. A liquid mixture in which one substance is mixed evenly throughout another substance

solution (C) Signup and view all the answers

Read the definition and choose the matching vocabulary word. Able to be turned the other way around.

reversible (A) Signup and view all the answers

Read the definition and choose the matching vocabulary word. A form of matter that is the same throughout and has specific properties.

substance (A) Signup and view all the answers

Which of the following statements is TRUE about the image below?

the vegetable oil is less dense than water because it floats above the water (B) Signup and view all the answers

What can we measure with the following tool?

mass (B) Signup and view all the answers

What is a common property of matter we could use to classify the following items? (aluminum can, popsicle stick, iron nail, & rock)

state of matter, because they are all solid (C) Signup and view all the answers

A copy of Mohs Hardness Scale is provided. The numbers indicate the hardness of some mineral samples from the softest (talc) to the hardest (diamond).

Mohs Hardness Scale

Talc

Gypsum

Calcite

Fluorite

Apatite

Orthociase Feldspar

Quartz

Topaz

Corundum

Diamond

Testing of an unknown mineral shows that it has a hardness greater than quartz. The unknown mineral could be which of the following?

Corundum (A) Signup and view all the answers

What is the state of matter of an ice cube?

solid (C) Signup and view all the answers

Which of the following provides the best evidence that a chemical reaction has taken place?

Two liquids are mixed and a solid substance forms. (A) Signup and view all the answers

A solid is mixed with a liquid. Which of the following would indicate that a new substance has been formed?

The color of the mixture is different from the color of the original substances. (C) Signup and view all the answers

The data table provides information on four different minerals. A mineral is observed to be red in color, and when it was rubbed on an unglazed tile, it left a black streak behind. Based on these observations, which of the following is the correct identification for the mineral?

Chromite (C) Signup and view all the answers

Flashcards

What is condensation?

The process where a gas changes into a liquid due to a decrease in temperature.

What is matter?

Anything in the universe that has mass and takes up space.