Science Test #1
Science Test #1
Welcome to the Science Test #1 quiz! This quiz is designed to test your knowledge across various scientific concepts, from basic principles to advanced theories.
Engage with thought-provoking questions:
- Testing hypotheses
- Understanding scientific principles
- Exploring atomic structure
Testing hypothesis often involves designing experiments. Which of the following terms is the factor that is observed and measured coming out of an experimental investigation?
Control group
Experiment group
Dependent variable
Independent variable
Dr. Smith reads two research papers that present different conclusions about the same question. He knows the researcher who wrote paper a, but does not know the authors of paper be. When asked which paper he thinks has more accuracy, Dr. Smith replies, paper A- "I know that guy." because of Dr. Smith's connection to some of the researchers, he unfortunately could be exhibiting
Bias
Inference
Observation
Skepticism
Jane Goodall spent years with the chimpanzees of Gombe . Sitting quietly for hours she watch the animals closely and took notes about their behavior. What is she doing?
Testing variables
Watching a control group
Making observations
Applying a stimulus
After her run, Aisha felt thirsty. Thirst was her body's way of telling her she needed more water to maintain
Growth
Metabolism
Development
Homeostasis
Tamar is talking about evolution with a friend. The friend says, "it's just a theory, so I don't believe it. When they prove it and it becomes the law of evolution, then maybe I'll change my mind." Which of these possible replies best describes scientific principles or the work of scientist?
Scientific theories do not become scientific laws; their explanations for natural phenomena based on evidence. Laws describe what happens, not why.
Science always finds the right answer; the answers that scientists and researchers discover never change
He should be afraid of science because it is based on research and evidence, not bias and opinion
Scientists take each other at their word regarding experimental results, and the public should, too, without checking the data.
Camille notices that the leaves of her potted plants are drooping this morning. The leaves were not droopy yesterday. She decides the plant needs to be watered based on what she sees in the leaves. What has Camille just done?
Calculated the probability of the plant's ability to survive without water
Devised a controlled experiment about the effect of water on plant leaves
Formed a hypothesis based on quantitative data she has collected
Made an inference based on past experience and observation
Which of the following statements about science is accurate?
Science deals with the investigation of supernatural events and mythical creatures
Science is a list of beliefs and facts that is constant and unchanging
Science involves collecting and organizing data about the natural world
Science is the process of finding evidence that supports what you already think, and data is chosen only if it supports your ideas
Micheal's grandmothers taking part in an experiment to determine how well a new headache medication works. In this experiment, the people in Group A are taking The new medication mixed into a pill. The people in Group B, including Micheal's grandmother, are taking a pill that does NOT contain the new medication but has all of the other ingredients as a group as pill. What is group b?
Group B is the control group
Group B is the experimental group
Group B is the independent variable
Group B is the dependent variable
Science began out of humankind's natural Curiosity to understand and explain the interactions and processes of the natural world. Science aims to use these explanations to understand patterns in nature, as well as to address issues that face the natural world and human society. Which statement best reflects the efforts of scientist in pursuing the goals of science?
Scientists make observations and conduct experiments in order to establish their opinions
Scientists attempt to resolve questions fo religious belief with scientific facts
Scientist review and revise current explanations when new evidence arises or advances in technology improve data
Scientists emphasize data that support their hypotheses and ignore data that does not
Which two types of particles are present in equal numbers in an atom, but NOT in an ion?
Protons and electrons
Protons and neutrons
Inner-shell electrons and outer-shell electrons
Protons and inner-shell electrons
What property of a water molecule allows hydrogen bonds to form among adjacent models?
The polarity of the molecule, which involves a slightly negative oxygen atom and a slightly positive hydrogen atom
The ionic bonds that form after the molecule separates into a hydroxide ion and hydrogen ion
The small size of the two hydrogen atoms compared to the oxygen atom
The polarity of the molecule, which involves a slightly negative oxygen atom and slightly positive hydrogen atoms
Water covers most of earths surface. The diagram shows the structure of a water molecule. What allows three items in a water molecule to stay together?
Covalent bonds formed by shared electrons between atoms
Covalent bonds formed boy electrons that transfer between atoms
Ionic bonds formed by electrons that transfer between atoms
Hydrogen bonds formed only by the electrons of the hydrogen atoms
What event changes an atom into an ion?
The sharing of electrons with another atom
The gain or loss of one or more electrons
The gain or loss of one or more neutrons
A chemical reaction that forms a molecule
A scientist is studying two isotopes of sodium, labeled A andB. In isotope A, each of the items has 11 protons, 12 neutrons, and 11 electrons. What could be the atomic structure of isotope b?
11 protons, 12 neutrons, and 10 electrons
12 protons, 12 neutrons, and 11 electrons
11 protons, 13 neutrons, and 11 electrons
11 protons , 12 neutrons, and 12 electrons
Hobie draws The following model of a carbon atom. Which change to the model would improve its accuracy?
Move each neutrons so it is next to a proton
Move the protons and neutrons to a small space in the center.
Move the protons and electrons to a small space in the center
Move all of the particles so that they are evenly spaced
Which of the following does NOT relate to how water molecules bond to each other?
Van der Waals forces
More electrons around the oxygen
Hydrogen bonds
Polar covalent molecules
Ionic bonds with hydrogen
The outermost electrons of an atom are called _____ electrons
Intrinsic
Ionic
Molecular
Intercostal
Valence
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