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Chemistry - Biology - Quiz_Year 8
Chemistry - Biology - Quiz_Year 8
Year 8 - KIS - Quiz
* Required
1.
Fig. 1.1 shows vertical sections of two different flowers. They are both pollinated by insects. (a) Suggest
two features which the flowers in Fig. 1.1 might have that would help the flowers to attract insects. 1.
......................................... 2. ............................................. (b) Describe the differences in the arrangement
of the male reproductive organs of flower 1 and of flower 2 as shown in Fig.
1.1....................................................................................................... (c) Pollen can go from the anther to
the stigma in the same flower without needing insects. This is called self-pollination. Suggest which
flower in Fig. 1.1 would have less chance of self-pollination. Explain your answer. Flower ....................
because ............................................................................................................[1] *
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2.
Chemistry - Biology - Quiz_Year 8
Table 5.1 shows some of the nutrients contained in 100 g of five foods. (a) (i) Which two nutrients listed
in Table 5.1 are carbohydrates? ------------- and -------------------- (ii) Which nutrient listed in
Table 5.1 contains nitrogen atoms in its molecules? ----------------- (iii) State the letters of two
foods in Table 5.1 that could have come from animals. ------------- and --------------------- (iv)
State the letter of the food that provides the most energy per 100 g. (b) Table 5.1 does not contain
information about vitamins or minerals. Outline the symptoms that a person may develop if their diet is
deficient in (i) vitamin D, (ii) iron. *
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3.
Chemistry - Biology - Quiz_Year 8
Fig. 8.1 shows the male reproductive system. (a) (i) Name parts C and D. *
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4.
Chemistry - Biology - Quiz_Year 8
A student investigates the reaction between dilute sulfuric acid and copper(II) carbonate powder. The
apparatus she uses is shown in Fig.1. The reaction produces a gas which is collected in the gas syringe. (a)
(i) Name the gas and the salt which are produced in this reaction. gas
...................................................................................... [1] salt
...................................................................................... [1] (b) The student records the volume of gas in the
syringe for 10 minutes. Her results are shown in Fig.2. Suggest why the reaction stops at 4 minutes
.................................................................................................................................................................................
............ [1] (c) The student repeats the experiment using the same mass of powdered copper(II) carbonate
and the same volume of dilute sulfuric acid. Suggest one change that the student can make to decrease the
time taken for the reaction to stop................................................................................ [1] *
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5.
Chemistry - Biology - Quiz_Year 8
Answer the following question *
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Chemistry - Biology - Quiz_Year 8
6.
Answer the following question *
7.
Name: *
8.
The formula of sulfuric acid is H2SO4.(i) State the number of different elements and the total number
of atoms shown in thisformula.number of elements ......................number of atoms ......................[2] *
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9.
Chemistry - Biology - Quiz_Year 8
Answer the following: *
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10.
Chemistry - Biology - Quiz_Year 8
Answer the following: *
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11.
Chemistry - Biology - Quiz_Year 8
Answer the following: *
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12.
Chemistry - Biology - Quiz_Year 8
Answer the following: *
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13.
Chemistry - Biology - Quiz_Year 8
Choose *
Mark only one oval.
Fertilization
Ovulation
Zygote
Pollination
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14.
Chemistry - Biology - Quiz_Year 8
Answer the following: *
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15.
Chemistry - Biology - Quiz_Year 8
Answer the following: *
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