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Grade 10 · Science · Challenge

Free Science Concepts and Evidence worksheet - version 9

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-10LC34I-19D7

1.

What is an isotope?A. Protons B. Atoms of one element with different neutron counts C. Ionic bond D. It increases

2.

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

3.

What does pH below 7 indicate?A. Protons B. Atoms of each element C. An acidic solution D. It increases

4.

What type of bond transfers electrons?A. Covalent bond B. An acidic solution C. Atoms of one element with different neutron counts D. Ionic bond

5.

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

6.

What does an atomic number count?A. Protons B. Atoms of each element C. Ionic bond D. Covalent bond

7.

What type of bond shares electrons?A. Atoms of each element B. Protons C. 6.022 x 10^23 particles D. Covalent bond

8.

What must a balanced chemical equation conserve?A. Atoms of each element B. An acidic solution C. Atoms of one element with different neutron counts D. Protons

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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 9
  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 pH below 7 indicate?An acidic solution
  4. What type of bond transfers electrons?Ionic bond
  5. What is a mole?6.022 x 10^23 particles
  6. What does an atomic number count?Protons
  7. What type of bond shares electrons?Covalent bond
  8. What must a balanced chemical equation conserve?Atoms of each element

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.