WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.hook FROM wp1f_actionscheduler_actions a
JOIN wp1f_actionscheduler_groups g ON g.group_id = a.group_id
WHERE g.slug = 'wp_mail_smtp' AND a.status IN ('in-progress', 'pending')
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a WHERE 1=1 AND a.hook='wp_mail_smtp_summary_report_email' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed]
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'wp_mail_smtp_summary_report_email', 'pending', '2026-06-01 11:00:00', '2026-06-01 14:00:00', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1780311600;s:18:\"\0*\0first_timestamp\";i:1780311600;s:13:\"\0*\0recurrence\";i:604800;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1780311600;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:604800;}', 13, 10, '[null]' FROM DUAL
WHERE (
SELECT action_id FROM wp1f_actionscheduler_actions
WHERE status IN ( 'pending', 'in-progress' )
AND hook = 'wp_mail_smtp_summary_report_email'
AND `group_id` = 13
LIMIT 1 ) IS NULL
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a WHERE 1=1 AND a.hook='wp_mail_smtp_admin_notifications_update' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed]
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'wp_mail_smtp_admin_notifications_update', 'pending', '2026-05-28 13:16:18', '2026-05-28 16:16:18', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1779974178;s:18:\"\0*\0first_timestamp\";i:1779974178;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1779974178;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 13, 10, '[null]' FROM DUAL
WHERE (
SELECT action_id FROM wp1f_actionscheduler_actions
WHERE status IN ( 'pending', 'in-progress' )
AND hook = 'wp_mail_smtp_admin_notifications_update'
AND `group_id` = 13
LIMIT 1 ) IS NULL
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a LEFT JOIN wp1f_actionscheduler_groups g ON g.group_id=a.group_id WHERE 1=1 AND g.slug='aioseo' AND a.hook='aioseo_cache_prune' AND a.args='[]' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a LEFT JOIN wp1f_actionscheduler_groups g ON g.group_id=a.group_id WHERE 1=1 AND g.slug='aioseo' AND a.hook='aioseo_cache_prune' AND a.args='[]' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed]
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'aioseo_cache_prune', 'pending', '2026-05-28 13:15:18', '2026-05-28 16:15:18', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1779974118;s:18:\"\0*\0first_timestamp\";i:1779974118;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1779974118;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 9, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a LEFT JOIN wp1f_actionscheduler_groups g ON g.group_id=a.group_id WHERE 1=1 AND g.slug='aioseo' AND a.hook='aioseo_cache_prune' AND a.args='[]' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a LEFT JOIN wp1f_actionscheduler_groups g ON g.group_id=a.group_id WHERE 1=1 AND g.slug='aioseo' AND a.hook='aioseo_cache_prune' AND a.args='[]' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed]
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'aioseo_cache_prune', 'pending', '2026-05-28 13:15:18', '2026-05-28 16:15:18', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1779974118;s:18:\"\0*\0first_timestamp\";i:1779974118;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1779974118;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 9, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a WHERE 1=1 AND a.hook='woocommerce_ac_send_email_action' AND a.status IN ('in-progress') ORDER BY a.scheduled_date_gmt ASC LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a WHERE 1=1 AND a.hook='woocommerce_ac_send_email_action' AND a.status IN ('pending') ORDER BY a.scheduled_date_gmt ASC LIMIT 0, 1
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed]
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'woocommerce_ac_send_email_action', 'pending', '2026-05-28 13:16:19', '2026-05-28 16:16:19', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1779974179;s:18:\"\0*\0first_timestamp\";i:1779974179;s:13:\"\0*\0recurrence\";i:900;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1779974179;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:900;}', 10, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
Notice: woocommerce_recently_viewed cookie cannot be set - headers already sent by /home/staging.pickabook.co.ke/public_html/wp-includes/class-wpdb.php on line 1851 in /home/staging.pickabook.co.ke/public_html/wp-content/plugins/woocommerce/includes/wc-core-functions.php on line 975 Science Matters Std 8 by “Ojwang,KOpiyo” - Pick A Book Limited
by “Ojwang, KOpiyo”
Science Matters is a science course that has been deliberately developed with the primary school pupil in mind. The course sets out to gently introduce science as a functional and practical subject.
It draws interesting scientific examples from the pupil’s familiar environment. The experiments and activities that are used to illustrate principles are easy to apply in almost every classroom in Africa. Besides, the pupil friendly approach makes it possible for the pupil to comfortably benefit from the course with minimum guidance from the teacher.
This specific volume has been prepared for use in Standard Eight in Kenyan schools, on the basis of the 2002 syllabus. The authors have many years of experience as teachers and examiners of science in Primary Schools, Secondary Schools and Teacher Training Colleges. They have also been widely involved in curriculum development.
WordPress database error: [Table './smDJtGH6wTJK5t/wp1f_actionscheduler_actions' is marked as crashed and last (automatic?) repair failed] SELECT a.action_id FROM wp1f_actionscheduler_actions a WHERE 1=1 AND a.hook='wc_schedule_pending_batch_processes' AND a.status IN ('in-progress', 'pending') LIMIT 0, 1
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