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Grade 10 · Science · Challenge

Free Science Concepts and Evidence worksheet - version 13

Grade 10 science practice based on published U.S. learning expectations, with reproducible original variations. This printable version includes 8 grade-appropriate questions and a separate answer sheet.

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Science Concepts and Evidence

Grade 10 · Stretch challenge · 8 questions · Version PG-13AXEZF-19D7

1.

What is an isotope?A. An acidic solution B. 6.022 x 10^23 particles C. Covalent bond D. Atoms of one element with different neutron counts

2.

What happens to reaction rate when temperature usually rises?A. It increases B. Ionic bond C. Atoms of each element D. Covalent bond

3.

What does an atomic number count?A. Protons B. 6.022 x 10^23 particles C. Atoms of each element D. Atoms of one element with different neutron counts

4.

What does pH below 7 indicate?A. An acidic solution B. Protons C. Atoms of one element with different neutron counts D. Atoms of each element

5.

What is a mole?A. 6.022 x 10^23 particles B. Protons C. It increases D. Atoms of each element

6.

What type of bond shares electrons?A. Covalent bond B. An acidic solution C. Ionic bond D. Protons

7.

What must a balanced chemical equation conserve?A. Atoms of each element B. Atoms of one element with different neutron counts C. 6.022 x 10^23 particles D. An acidic solution

8.

What type of bond transfers electrons?A. Ionic bond B. Atoms of one element with different neutron counts C. It increases D. Atoms of each element

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Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 13
  1. What is an isotope?Atoms of one element with different neutron counts
  2. What happens to reaction rate when temperature usually rises?It increases
  3. What does an atomic number count?Protons
  4. What does pH below 7 indicate?An acidic solution
  5. What is a mole?6.022 x 10^23 particles
  6. What type of bond shares electrons?Covalent bond
  7. What must a balanced chemical equation conserve?Atoms of each element
  8. What type of bond transfers electrons?Ionic bond

Worked example

Read the direction, identify the assessed skill, solve or cite evidence, and check the response.

Common mistake

Using a memorized procedure without checking what the question asks.

Helpful hint

Name the standard skill before answering.