Complete the sentences given: Carbon dioxide is produced in body cells by the process of ........................ . Carbon dioxide is removed from the blood in the .......................... .
Carbon dioxide is produced in body cells by the process of DIFFUSION. Carbon dioxide is removed from the blood in the LUNG/ALVEOLI.
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15
Based on the info given, what is the neutron number of zinc?
35! Nucleon number - proton number = neutron number
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20
Alkene is produced during process X. What is X? Does it involves physical or chemical change?
X is the cracking reaction! This process is a chemical change as new substance is formed.
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20
Describe two physical properties of copper (transition element) that are NOT properties of sodium (Group 1).
Copper has catalytic properties and can form coloured compound. They also have high melting point.
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20
Diagram shows the muscle cell. What is the function of B? Which characteristic of living organism is the muscle cell in charge of?
B is in charge of the metabolic reactions, and this cell is important for the movement!
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baam
Lose 15 points!
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fairy
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baam
Lose 25 points!
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monster
Reset all scores!
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fairy
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rocket
Go to first place!
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lifesaver
Give 25 points!
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eraser
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star
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shark
Other team loses 20 points!
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banana
Go to last place!
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15
Mayflies eat pondweed. Trout eat mayflies. Herons eat trout. Construct a food chain using this information!
pondweed -> mayflies -> trout -> herons
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15
Reaction of X with acid leads to the equation below. Can you predict X?
Sodium carbonate, as it produces carbon dioxide!
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20
Graph shows the number of patients with heart diseases according to age group. State 1 SIMILARITY and 1 DIFFERENCE between male and female.
Similarity: number of patients increases as age increases. Difference: Female is lower than male for all age group.
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fairy
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gift
Win 5 points!
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thief
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20
Name the mineral ion that the plant must absorb to make chlorophyll! Which vessel do they travel in?
Magnesium ions and they travel in the xylem vessel :D
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20
Based on the air composition, which one of it is the compound? Explain your answer!
Carbon dioxide, it consist of more than 2 elements: carbon & oxygen
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20
Anaemia is a medical condition. A person with anaemia has fewer red blood cells than normal. Suggest why anaemia can cause a person to have less energy.
Red blood cells transport oxygen. When there is less oxygen, the respiration rate decreases as well. Respiration releases energy.
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20
Describe two differences between the arrangement of atoms in solid copper and the arrangement of atoms in molten copper.
Solid copper is in fixed position AND has fixed arrangement (vice versa).