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Activity 2

This document contains an activity sheet for students, including multiple-choice questions about the big bang model and an irregular crossword puzzle related to nuclear physics. The multiple-choice section tests knowledge on key concepts like nucleosynthesis, inflation, and recombination. The crossword puzzle requires students to fill in terms related to atomic structure and subatomic particles.

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Darlyn Mae Cy Padua
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5 views2 pages

Activity 2

This document contains an activity sheet for students, including multiple-choice questions about the big bang model and an irregular crossword puzzle related to nuclear physics. The multiple-choice section tests knowledge on key concepts like nucleosynthesis, inflation, and recombination. The crossword puzzle requires students to fill in terms related to atomic structure and subatomic particles.

Uploaded by

Darlyn Mae Cy Padua
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Name:___________________________________________ ____________ Grade& Section:________________________

Subject:______________________________________________________ Date:____________________________________

ACTIVITY #2
Activity 1.1- Multiple Choice
Direction: Select the best answer. Encircle the letter on a separate answer sheet.

1. It refers to a process in the stages of the big bang model wherein protons and

neutrons came together to form different types of nuclei?

a. big bang singularity b. inflation

c. nucleosynthesis d. recombination

2. It refers to a process in the stages of the big bang model wherein the universe

rapidly expand?

a. big bang singularity b. inflation

c. nucleosynthesis d. recombination

3. It refers to the first stage of the big bang model wherein it begun as an

infinitely hot and dense?

a. big bang singularity b. inflation

c. nucleosynthesis d. recombination

4. It refers to a process in the stages of the big bang model wherein electrons

started to bind to ionize protons and nuclei forming neutral atoms?

a. big bang singularity b. inflation

c. nucleosynthesis d. recombination

5. Arrange the stages of the big bang theory :

1-recombination 2- big bang singularity 3-inflation 4-nucleosynthesis

a. 2314 b. 2341

c. 3241 d. 3412

6. Which of these is true about the big bang model?

a. The singularity is an established, well-defined part of the model

b. Cosmic expansion stopped at some point in time


c. Part of its proof is the amounts of H and He we have in the universe today

d. Part of its proof is the amounts of H and He we have in the universe today.

Activity 1.2 Irregular Crossword Puzzle


Direction: Complete the crossword by filling in a word that fits its clue.

ACROSS

1- light nuclei fuse together to form to a heavier nucleus

2- subatomic particle with a positive charge

3- isotope of hydrogen with 1 proton and 1 neutron

4- the lightest element

5- isotope of hydrogen with I proton and 2 neutrons

6- with a negative charge

7- symbol for lithium

8- symbol for helium

DOWN

1- creates new atomic nucleus from preexisting nucleons

2- subatomic particle with a zero charge

3- symbol for beryllium

4- densely part of an atom containing p and n

5- ability to do work

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