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WorksheetsScience is all around us - Days 1 + 2
Total questions: 13
Worksheet time: 10mins
Which of these pairs of substances mix? (2 answers)
oil + water
water + syrup
oil + wax
vinegar + oil
Lava lamp: Which gas was produced after we dropped the fizzy tablet into the bottle?
O2 oxygen
H2 hydrogen
CO2 carbon dioxide
CH4 methane
Lab vocab: Which of the following is made of glass? (2 answers)
funnel
test tube
glass bottle
spoon
What does this pictogram mean?
corrosive
poisonous
irritant
removes stains on skin
What does this pictogram mean?
irritant (reizend)
poisonous (giftig)
toxic (toxisch)
corrosive (ätzend)
What does this pictogram mean?
poisonous tree kills fish
environmentally dangerous
Careful - pesticides!
poison - dangerous for animals
Soap: Which of the following are ingredients of our home made soap?
lye (sodium hydroxide solution)
sunflower oil
coconut oil
palm oil
acid (citric acid)
Which part of the soap molecules will attach to oily dirt?
the hydrophilic heads
the hydrophobic heads
the hydrophilic tails
the hydrophobic tails
Oil is a ... substance.
hydrophobic
hydrophilic
What kind of mixture is this?
heterogeneous
homogeneous
Acids ... (multiple answers)
are always dangerous
are used in everyday life
often have a sour taste
have a pH between 0 and 6.9
have a pH between 7.1 and 14
Bases... (multiple answers)
are always dangerous
form OH- ions in solution (in Lösung)
have a pH between 0 and 6.9
have a pH between 7.1 and 14
are an important part of our lives
Which of the following items are acidic?
pH-neutral shower gel (pH-adjusted ...)
vinegar
washing soda
drain cleaner
