Page 54 - Big Ideas Year 10 sciPAD 2025

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54 SCIPAD - BIG IDEAS - BOOK 2
BASIS OF CHEMICAL REACTIONS
2. A scientific statement has been cut up into blocks. Each block contains part of a word for
that statement. Rearrange the blocks to form the statement. Some of them have been
done for you.
Acids, bases and alkillis are found in the laboratery and at home. They can be irritents or
corrosive and must be handled carefully. How acid or alkaline a chemical is can be meazured
on the pH schale, using indicatorz like litmus and universil indicator. Acids and bases react
together to form salts and other producks two. Laboratory acids are far too dangeris to taste,
but you will have swallowed some diloot, weak acids. Acids have a sour taste, like vanegar,
and lemon - both of witch contain acids. Most types of metels react with acids and produce
compounds called sults.
3. There are 14 misspelt words in the following paragraph. Circle the incorrect words and
write them correctly in the space provide below.
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
(l)
(m)
(n)
- A D - N E A C T
- I S - A - C U R
S A T
W H E
U T R
C I D
I O N
B A S
- T O
- R E
D E D
N - A
N - A E - A - O C
I O N
A L I S.
Down
1. When a metal reacts with an acid, this gas is
produced.
2. Scientific word to describe a metal’s ability to
be beaten into shapes.
3. Metal used in electrical wires.
4. When this metal reacts with oxygen, it burns
with a very bright white light.
5. Name of the test for hydrogen gas.
7. Colour of Universal indicator in a strong acid.
10. The type of acid found in lemons and oranges.
12. A type of tablet you might take to help with
heartburn.
13. Metal used in the filament of light bulbs.
14. Neutralisation reactions produce a salt and
this compound.
15. Describes the chemical breakdown of metals.
16. Acid that produces chloride salts.
18. These are able to neutralise acids.
19. Type of salts formed by nitric acid.
21. A mixture of copper and tin.
23. Word used to describe a metal’s ability to be
drawn into a fine wire.
26. Changes colour depending on pH.
27. Describes a solution with only a small amount
of solute in it.
30. Release hydrogen ions when dissolved in
water.
33. Elements found on the left hand side of the
periodic table.
34. Type of salts formed by sulfuric acid.
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