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Grade 10 · Science · Challenge

Free Science Concepts and Evidence worksheet - version 12

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-130XTAG-19D7

1.

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. 6.022 x 10^23 particles

2.

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

3.

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

4.

What does an atomic number count?A. Atoms of each element B. An acidic solution C. Atoms of one element with different neutron counts D. Protons

5.

What type of bond transfers electrons?A. Protons B. Ionic bond C. It increases D. 6.022 x 10^23 particles

6.

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

7.

What happens to reaction rate when temperature usually rises?A. Ionic bond B. Atoms of one element with different neutron counts C. Protons D. It increases

8.

What does pH below 7 indicate?A. An acidic solution B. It increases 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 12
  1. What must a balanced chemical equation conserve?Atoms of each element
  2. What type of bond shares electrons?Covalent bond
  3. What is a mole?6.022 x 10^23 particles
  4. What does an atomic number count?Protons
  5. What type of bond transfers electrons?Ionic bond
  6. What is an isotope?Atoms of one element with different neutron counts
  7. What happens to reaction rate when temperature usually rises?It increases
  8. What does pH below 7 indicate?An acidic solution

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.