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WorksheetsScience Unit 1 Test
Total questions: 10
Worksheet time: 5mins
What is a endothermic reaction?
A reaction that releases heat
A reaction that does nothing
A reaction that absorbs heat/energy
A reaction that releases mass
_________ the substance speeds up the reactants causing an _______ in the rate of reaction .
Heating, increase
Cooling, Increase
Heating, Decrease
What is the Law of Conservation of Matter
A reaction where matter increases
A chemical reaction that changes color.
a chemical reaction that does not bubble.
a chemical reaction does not destroy nor create matter.
What is matter
anything that floats
anything that with 4 sides
anything that has mass and volume
anything that sinks
What is an atom?
the smallest part of an element that have all properties of the element.
the biggest part of an element that have all properties of the element.
A liquid substance
the smallest part of an element that doesn't have properties of the element.
Physical properties
characteristics that only include color and temperature.
characteristic that you can observe or measure without changing the identity of the substance
A atom that is missing a nucleus.
Properties that can't be observed with a microscope
Melting Point
Temperature at which matters turns into a solid.
The ability of matter to dissolve.
Temperature when matter changes into a gas.
Temperature when matter changes into a liquid.
What is density?
How compact the atoms/molecules are contained in matter.
The weight of a substance.
The atomic mass of a substance.
A equation that has more than 3 elements in a chemical equation.
What is chemical properties?
Chemicals that are toxic
how matter behaves during and after a chemical reaction
how matter behaves during a physical change.
The protons in a atom
What is Oxidation?
Any chemicals that are toxic
The ability of matter to react with salt.
The ability of matter to react with water.
The ability of matter to react with oxygen or rust.
