Science Quiz: Biology & Chemistry Concepts
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Questions and Answers

What process causes Jamila's hand to feel cold?

Conduction

What is process A in the carbon cycle diagram?

  • Decomposition
  • Combustion
  • Photosynthesis (correct)
  • Respiration

    • The products of the reaction between magnesium and copper sulfate are magnesium sulfate and copper.

    True (A)

    The mass of the fetus at 40 weeks is ______ kg.

    <p>3.00</p> Signup and view all the answers

    Match the following weeks of fetal development with their corresponding masses:

    <p>36 weeks = 2.40 kg 37 weeks = 2.55 kg 38 weeks = 2.60 kg 39 weeks = 2.85 kg 40 weeks = 3.00 kg</p> Signup and view all the answers

    Parts labelled A, B, C, D, and E in the human excretory system must be completed. Part A is the _____, part B is the _____, part C is the _____, part D is the _____, and part E is the _____.

    <p>Kidney, Ureter, Bladder, Urethra, Renal artery</p> Signup and view all the answers

    Plants make proteins using nitrates.

    <p>True (A)</p> Signup and view all the answers

    Which atom loses three electrons to form an ion?

    <p>Al (C)</p> Signup and view all the answers

    What is a negative ion?

    <p>An atom that gains one or more electrons, resulting in a net negative charge.</p> Signup and view all the answers

    Which of the following elements forms a negative ion?

    <p>Cl (D)</p> Signup and view all the answers

    What is meant by an ionic bond?

    <p>An ionic bond is the electrostatic attraction between oppositely charged ions, typically formed when one atom transfers electrons to another.</p> Signup and view all the answers

    Match the elements with their number of electrons in one ion:

    <p>Li = 2 Mg = 10 Cl = 18 K = 18 Al = 10</p> Signup and view all the answers

    Which piece of equipment does Rajiv use to measure the temperature of the water?

    <p>Thermometer (A)</p> Signup and view all the answers

    The shiny silver container gains more thermal energy than the black container.

    <p>False (B)</p> Signup and view all the answers

    What is the process by which thermal energy travels through the metal containers?

    <p>Conduction</p> Signup and view all the answers

    The particles in the metal gain thermal energy and become ______.

    <p>more energetic</p> Signup and view all the answers

    Match the metals to their predicted displacement reaction results with iron sulfate solution:

    <p>Zinc = Yes Magnesium = Yes Copper = No Iron = Yes</p> Signup and view all the answers

    Which metal is most likely to not cause a displacement reaction with iron sulfate?

    <p>Copper (C)</p> Signup and view all the answers

    The thermal energy travels through the metal by radiation.

    <p>False (B)</p> Signup and view all the answers

    Explain how the black container gains more thermal energy.

    <p>It absorbs more sunlight due to its color, which increases the water's temperature.</p> Signup and view all the answers

    As energy passes through the metal the particles ______ with each other.

    <p>collide</p> Signup and view all the answers

    What are the cells in the root that absorb water from the soil called?

    <p>root hair cells</p> Signup and view all the answers

    What tube in the stem transports water up the flowering plant?

    <p>Xylem (C)</p> Signup and view all the answers

    Transpiration is the process that causes the absorption of water from the soil.

    <p>False (B)</p> Signup and view all the answers

    Carlos measures the mass after ______ hours to determine water loss.

    <p>24</p> Signup and view all the answers

    Calculate the mass of water lost by the plant shoot if the mass at the start is 820g and the mass after 24 hours is 811g.

    <p>9g</p> Signup and view all the answers

    Why does Carlos place a layer of oil on top of the water in the conical flask?

    <p>To reduce evaporation (D)</p> Signup and view all the answers

    The conical flask is used in Carlos's experiment to hold the plant shoot.

    <p>True (A)</p> Signup and view all the answers

    Match the following components with their functions:

    <p>Root hair cells = Absorb water from the soil Xylem = Transport water up the plant Transpiration = Loss of water from leaves Oil layer = Minimize evaporation</p> Signup and view all the answers

    The mass of the plant shoot, before measurements, was ______ grams.

    <p>820</p> Signup and view all the answers

    What does Carlos use to measure the change in mass of the flask and contents?

    <p>balance</p> Signup and view all the answers

    What was the mass of water lost after 24 hours?

    <p>8.9 g (C)</p> Signup and view all the answers

    Carlos believes the results are not better based on the mass lost.

    <p>False (B)</p> Signup and view all the answers

    What is the mean diameter of the crater created by the 10 mm ball?

    <p>13.2 mm</p> Signup and view all the answers

    The type of bonding in a molecule of methane is __________.

    <p>covalent</p> Signup and view all the answers

    Match the following balls to their corresponding mean crater diameters:

    <p>8 mm = 11.8 mm 10 mm = 13.2 mm 40 mm = 36.2 mm 50 mm = 46.8 mm</p> Signup and view all the answers

    Why are Oliver and Pierre correct in thinking their results are reliable?

    <p>They conducted multiple trials. (D)</p> Signup and view all the answers

    A molecule of methane has a total of 10 electrons.

    <p>False (B)</p> Signup and view all the answers

    What is one predicted physical property of methane?

    <p>It is a gas at room temperature.</p> Signup and view all the answers

    The mass at the start for the experiment was __________ grams.

    <p>820.3</p> Signup and view all the answers

    How many total hydrogen atoms are present in a molecule of methane?

    <p>4 (B)</p> Signup and view all the answers

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    Description

    Test your knowledge on various topics in biology and chemistry, including fetal development, the carbon cycle, chemical reactions, and ionic bonds. This quiz covers important concepts that are fundamental to understanding these sciences. Perfect for students preparing for exams or anyone interested in expanding their knowledge in these fields.

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