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WorksheetsQuick check #2
Total questions: 12
Worksheet time: 16mins
The property of metals that makes them easily pounded or pressed into new shapes is called
conductivity
reactivity
malleability
melting point
The simplest pure substances are
compounds
elements
electrons
mixtures
Which of the following is not an element?
aluminum
air
sodium
iron
Which of the following is not a compound?
water
sodium chloride
carbon dioxide
oxygen
Which of the following elements is not common in living things?
hydrogen
carbon
aluminum
nitrogen
To calculate the density of an object, you would divide its mass by which of the following?
weight
volume
length
temperature
A sample of an unknown substance has a mass of 72.8 grams and a volume of 4 mL. Calculate the density of the substance and use the chart to determine its identity. The substance is most likely -
copper
gold
pyrite (fool's gold)
nickel
Alyssa is baking bread. Which of the following is NOT evidence that a chemical change occurred during baking?
holes in the bread show a gas was produced during the baking process
a color change occurred in the baking process
a new substance was formed in the baking process
steam given off as water in the dough is heated and evaproates
Which of the following is an example of a chemical change?
a spilled bucket of water
a spinning top
a melting popsicle
a cup of souring milk
The picture above shows a roasting marshmallow. All of the following are evidence of a chemical change taking place except -
the marshmallow turns a dark color
the marshmallow melts
the marshmallow tastes different after being heated
the sugars in the outer layer of the marshmallow changes to carbon
As part of a field investigation at the Ocean Science Institute, Steven analyzed a sample of ocean water. He received the report which summarizes the relative amounts of dissolved solids found in the sample. The copy of the report was damaged and one of the element names could not be read. Which of the following is most likely the element that is missing from the list?
Iron
Boron
Sodium
Gold
The above table shows physical properties of some elements. Which of the properties describes nonmetals?
I, II, and III only
I and II only
I and IV only
I, III, and IV only
