{"id":6202,"date":"2016-03-26T12:00:48","date_gmt":"2016-03-26T19:00:48","guid":{"rendered":"https:\/\/magoosh.com\/act\/?p=6202"},"modified":"2018-10-24T20:06:49","modified_gmt":"2018-10-25T03:06:49","slug":"5-most-frequently-tested-act-science-topics","status":"publish","type":"post","link":"https:\/\/magoosh.com\/act\/5-most-frequently-tested-act-science-topics\/","title":{"rendered":"Most Frequently Tested ACT Science Topics"},"content":{"rendered":"

A lot of students get a little nervous when they see that the ACT has a science section. “But I’m not a science person!” they moan. But there’s a very important distinction between the topics on the ACT Science<\/a> Test and any other science test you\u2019ve ever taken. The most frequently tested ACT Science<\/a> topics focus more on what you can do when given certain information, rather than what you know before coming into the test. <\/strong><\/p>\n

Though you need to be familiar with scientific terms to succeed on the ACT Science Test, the test\u2019s topics also revolve around certain skills. In this post, we’ll look at the most frequently tested ACT Science topics so that you know what to expect on test day. (I’ll also point you in the right direction so that you can learn more about each topic and raise your score.) <\/p>\n

The Scientific Method<\/h2>\n

The scientific method is the key underlying concept behind all science data found on the ACT.<\/p>\n

Google Dictionary defines the scientific method <\/em>as \u201ca method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.\u201d<\/p>\n

This widely accepted definition guides all valid scientific research. When carried out correctly, the scientific method yields useful, reliable results. Beyond the dictionary definition, the scientific method involves a number of procedural steps. In a nutshell, the steps are as follows:
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    \n
  1. Observe some kind of scientific phenomenon.<\/li>\n
  2. Describe what you\u2019ve observed and the evidence of scientific facts you see. This description is called a hypothesis<\/em>.<\/li>\n
  3. Use the hypothesis to make predictions about what might happen under certain circumstances.<\/li>\n
  4. Test those predictions by conducting science experiments to see if they\u2019ll come true.<\/li>\n
  5. If the results of the experiment challenge your hypothesis, repeat steps 2 through 4 again. Come up with a new hypothesis based on both experiment results and your original observation, and test it with a new experiment. Keep repeating steps 2 through 4 until the experiment proves one of your hypotheses.<\/li>\n
  6. Once an experiment proves your hypothesis, your hypothesis can be reported to the scientific community as a valid theory<\/em>.<\/li>\n<\/ol>\n

     
    \nOf course, if your hypothesis is proven to be true immediately in the first experiment, then steps 2 through 4 don\u2019t need to be repeated and step 5 isn\u2019t necessary. Sometimes scientists get lucky and prove their hypothesis on the first experimental try, but more often than not, they don\u2019t. Multiple experiments are usually needed before a hypothesis can become a proven theory.<\/p>\n

    Knowing the scientific method will help you immensely on ACT Science questions that require deductive reasoning. You will sometimes be asked to identify a fact that is probably true, based on the data you see. At other times, a question may present a new observation or variable that was not mentioned in the passage and you\u2019ll need to use the logic of the scientific method to infer the impact of the new data.<\/p>\n

    Beyond those specific question types, the ACT incorporates knowledge of the scientific method comprehensively throughout the Science section. Every ACT Science passage and question set revolves around experiments and\/or data collected from experiments. A fluency in the scientific method will allow you to take in ACT Science information with confidence and good comprehension.<\/p>\n

    Reading ACT Science Charts<\/h2>\n

    Think of this as the \u2018treasure hunt.\u2019 Unlike similar questions on the ACT Reading Test, finding the right answer on the ACT Science Test depends on your ability to read charts, rather than passages. The key to success lies in recognizing labels. Skim the questions<\/a> first, marking any term that looks important. Once you\u2019ve matched a term in the chart to a term used in a question, you know exactly where to look for the answer. The rest of the information (most of it useless) will no longer confuse you or stress you out<\/a>.<\/p>\n

    Using ACT Science Charts<\/h2>\n

    The chart treasure hunt is over. For this question type, you\u2019ll be given a scenario (ex: a variable in the experiment has changed) and have to use the chart<\/a> to figure out the possible outcome. Though you\u2019re making an educated guess, the chart will provide all the information you need to answer the question successfully, so don’t let your guess stray too<\/em> far from what you see.<\/p>\n

    ACT Science Graphs<\/h2>\n

    While scientists use graphs to visualize data and see patterns in their results, graphs can present unique challenges to the ACT test taker. Questions involving graphs will likely ask you to use both a graph and a corresponding chart.<\/a> As long as you\u2019re focusing on the keywords mentioned in the question, the excess data should not confuse you.<\/p>\n

     <\/p>\n

    \n
    \"5
    Even in such a ‘busy’ graph, a question will typically ask you about a single line of data.<\/figcaption><\/figure>\n<\/div>\n

     <\/p>\n

    What Comes Next?<\/strong><\/h2>\n

    These questions will ask you to decide what the experimenter should do next. The key to these questions is knowing what the experiment is trying to do. Again, they don’t require any deep knowledge of science, only strong reasoning skills and an ability to “tune out” inessential information.<\/p>\n

     <\/p>\n

    \n
    \"5<\/a>
    If we look at the first paragraph, we see that scientists want to know about “high altitudes and the effects of the air pressure changes.” If that’s what the scientists want to learn about, our next step needs to have something to do with high altitudes and air pressure.<\/figcaption><\/figure>\n<\/div>\n

     <\/p>\n

    Comparing and Inferring<\/h2>\n

    This last question type appears only with the the Comparing Viewpoints<\/a> passage on the ACT Science Test. Ever do a compare\/contrast activity in English or history class? If so, you know what you need to do to answer these questions correctly. If not, it all boils down to finding similarities and differences in the two opinions.<\/p>\n

    The hardest topic for many students is the inference questions. To improve your inference skills, spend extra time analyzing your results after taking a timed practice test<\/a>. Good practice tests provide detailed explanations for each answer. If you consistently make mistakes with inference questions, analyzing the right answer will help you build the skill you need to succeed.<\/p>\n

    ACT Science: Scientific Terms<\/h2>\n

    Bonus! You can find definitions for the following terms and study them on our ACT Flashcard mobile or web app<\/a>!<\/em><\/strong><\/p>\n

    The ACT Science section will occasionally include questions in which the answer requires science knowledge that is not provided in the passage.<\/p>\n

    Here is a list of basic scientific topics that the ACT might test. But don\u2019t panic! Anything tested will be on a very basic level (something you might have learned in an introductory class or even remember from middle school), and you will only see a few questions per test that require any outside knowledge at all.<\/p>\n

    To get some more tips on ACT science practice<\/a>, follow this link for strategies, questions and explanations!<\/p>\n

    Biology<\/h2>\n