WorksheetsMatter and Energy Test
Total questions: 15
Worksheet time: 9mins
Which statement best describes evidence that a chemical reaction occurs as a cake bakes?
The water in the cake batter evaporates
The cake rises as gas bubbles form in the baking cake
The cake takes the shape of the container in which it is baked
The water in cake batter is used to keep the cake moist as it bakes
Water and oil are poured into the same container. An object is added. The materials are allowed to sit and their final positions are shown in the illustration.
The object has the lowest density
Water is more dense than oil.
The object is more dense than water
Oil has the highest density
Which of the following properties of an unknown substance would allow it to be classified as a mixture? The unknown substance-
Has an overall density greater than that of water
Is able to easily conduct an electric current
Can somewhat be shaped into sheets
You can distinguish the different parts that make up the substance
Which of the following statements best describes gases? Gases-
Cannot easily change their volume by compression
Maintain a constant shape, regardless of the container
Can change shape and volume depending on the container
Have a fixed size and shape, regardless of the container
Which type of substances have a definite shape and fixed volume?
Solids only
Liquids and solids
Gases only
Liquids and gases
Which of the following properties of an unknown substance would allow it to be classified as a pure substance?
Is not able to conduct any electric current
Has an overall density greater than that of water
Consists of a solid dissolved in distilled water
Is composed throughout of one and only one element
Which of the following can be concluded based on the results?
Sphere 1 is more dense than sphere 2
Sphere 2 is less dense than sphere 3
Sphere 3 is less dense than sphere 2
Sphere 2 is less dense than sphere 1
A sliver ring reacts with compounds containing sulfur in the air to form silver sulfide, a black substance that makes up the tarnish on the surface of silver objects. To remove the tarnish from the ring, students placed it in a pan lined with aluminum foil and added hot water. Baking soda was added to the hot water and stirred. Students made observations about the process.
Which observation of the process provides evidence of chemical reaction?
Hot water heated the aluminum foil
The liquid solution changed color
The pan was lined with aluminum foil
The hot water cooled
Which of the following properties of an unknown substance would allow it to be classified as a pure substance?
Can be dissolved into a solution
Has a definite composition throughout
Combines easily with other substances
Is made of a single element or compound
A student is trying to classify an unidentified, solid gray material as a metal or a nonmetal.
Which of the following questions will best help the student classify the material?
Is the material malleable or ductile?
Does the material feel hard to the touch?
Will the material float in water?
Does the material feel rough or smooth?
Which two objects are most likely less dense than the water?
Wood block
Metal paper clip
Plastic ball
Glass marble
Which observation would provide the best evidence that a chemical reaction occurred?
The baking soda and the hydrochloric acid combined, and bubbles formed.
The baking soda absorbed the hydrochloric acid
Some of the baking soda dissolved in the hydrochloric acid
The hydrochloric acid evaporated, leaving only the baking soda
Which of the following is true regarding the particle nature of a solid? Particles in a solid-
Move very little, so it cannot easily change its shape
Are relatively far apart, so it is highly compressible
Are in continual motion, and can slide past each other
Are very far apart, so it can easily change its shape
Which of the following is true regarding the particle nature of a gas? Particles in a gas-
Move very little, so it cannot easily change its shape
Are relatively far apart, so it is highly compressible
Are in continual motion, and can slide past each other
Are very far apart, so it can not easily change its shape
Click on the name of the element that would be classified as a METALLOID?
